SlideShare une entreprise Scribd logo
1  sur  1
Télécharger pour lire hors ligne
Calculate sinb if cosb=-1/2 and b is in the third quadrant .
Solution
First, we have to emphasize that if b is in the third quadrant, the value of sin b is negative.
Due to the fact that the value of cosb is given, from enunciation, we'll calculate the value of sin
b, with the help of fundamental formula of trigonometry:
(sin b)^2 + (cos b)^2 = 1
But cos b = -1/2
(sin b)^2 + (-1/2)^2 = 1
We'll subtract (-1/2)^2 both sides:
(sin b)^2 = 1 -1/4
sin b = -sqrt (3/9)
sin b = -(sqrt 3)/3

Contenu connexe

Plus de ajantha11

Business LawSome businesses are aggressive at suing the media that.pdf
Business LawSome businesses are aggressive at suing the media that.pdfBusiness LawSome businesses are aggressive at suing the media that.pdf
Business LawSome businesses are aggressive at suing the media that.pdf
ajantha11
 
Business Law Class MSACH.05 Criminal Law (2) set 10William Parks.pdf
Business Law Class MSACH.05 Criminal Law (2) set 10William Parks.pdfBusiness Law Class MSACH.05 Criminal Law (2) set 10William Parks.pdf
Business Law Class MSACH.05 Criminal Law (2) set 10William Parks.pdf
ajantha11
 
C#i need help creating the instance of stream reader to read from .pdf
C#i need help creating the instance of stream reader to read from .pdfC#i need help creating the instance of stream reader to read from .pdf
C#i need help creating the instance of stream reader to read from .pdf
ajantha11
 
Cablevision has just hired a new director of budgeting, LACEY DUBOIS.pdf
Cablevision has just hired a new director of budgeting, LACEY DUBOIS.pdfCablevision has just hired a new director of budgeting, LACEY DUBOIS.pdf
Cablevision has just hired a new director of budgeting, LACEY DUBOIS.pdf
ajantha11
 

Plus de ajantha11 (10)

Business LawSome businesses are aggressive at suing the media that.pdf
Business LawSome businesses are aggressive at suing the media that.pdfBusiness LawSome businesses are aggressive at suing the media that.pdf
Business LawSome businesses are aggressive at suing the media that.pdf
 
Business LawIn the following situations, two parties claim the s.pdf
Business LawIn the following situations, two parties claim the s.pdfBusiness LawIn the following situations, two parties claim the s.pdf
Business LawIn the following situations, two parties claim the s.pdf
 
Business Law Class MSACH.05 Criminal Law (2) set 10William Parks.pdf
Business Law Class MSACH.05 Criminal Law (2) set 10William Parks.pdfBusiness Law Class MSACH.05 Criminal Law (2) set 10William Parks.pdf
Business Law Class MSACH.05 Criminal Law (2) set 10William Parks.pdf
 
C#i need help creating the instance of stream reader to read from .pdf
C#i need help creating the instance of stream reader to read from .pdfC#i need help creating the instance of stream reader to read from .pdf
C#i need help creating the instance of stream reader to read from .pdf
 
Calculate 1+i+i^2+i^3+i^4+......+i^10.SolutionWe know that i^2.pdf
Calculate 1+i+i^2+i^3+i^4+......+i^10.SolutionWe know that i^2.pdfCalculate 1+i+i^2+i^3+i^4+......+i^10.SolutionWe know that i^2.pdf
Calculate 1+i+i^2+i^3+i^4+......+i^10.SolutionWe know that i^2.pdf
 
Business intelligence (BI) _____________.A)is knowledge technology w.pdf
Business intelligence (BI) _____________.A)is knowledge technology w.pdfBusiness intelligence (BI) _____________.A)is knowledge technology w.pdf
Business intelligence (BI) _____________.A)is knowledge technology w.pdf
 
Calculate 25(4+3i) +25(4-3i)SolutionWell factorize by 25 .pdf
Calculate 25(4+3i) +25(4-3i)SolutionWell factorize by 25 .pdfCalculate 25(4+3i) +25(4-3i)SolutionWell factorize by 25 .pdf
Calculate 25(4+3i) +25(4-3i)SolutionWell factorize by 25 .pdf
 
Cablevision has just hired a new director of budgeting, LACEY DUBOIS.pdf
Cablevision has just hired a new director of budgeting, LACEY DUBOIS.pdfCablevision has just hired a new director of budgeting, LACEY DUBOIS.pdf
Cablevision has just hired a new director of budgeting, LACEY DUBOIS.pdf
 
c. Financial PerspectiveHow can we be good stewards of institution.pdf
c. Financial PerspectiveHow can we be good stewards of institution.pdfc. Financial PerspectiveHow can we be good stewards of institution.pdf
c. Financial PerspectiveHow can we be good stewards of institution.pdf
 
c.Explain why in Cross-Cultural Negotiations, the heuristic of avail.pdf
c.Explain why in Cross-Cultural Negotiations, the heuristic of avail.pdfc.Explain why in Cross-Cultural Negotiations, the heuristic of avail.pdf
c.Explain why in Cross-Cultural Negotiations, the heuristic of avail.pdf
 

Dernier

Salient Features of India constitution especially power and functions
Salient Features of India constitution especially power and functionsSalient Features of India constitution especially power and functions
Salient Features of India constitution especially power and functions
KarakKing
 

Dernier (20)

Graduate Outcomes Presentation Slides - English
Graduate Outcomes Presentation Slides - EnglishGraduate Outcomes Presentation Slides - English
Graduate Outcomes Presentation Slides - English
 
How to Create and Manage Wizard in Odoo 17
How to Create and Manage Wizard in Odoo 17How to Create and Manage Wizard in Odoo 17
How to Create and Manage Wizard in Odoo 17
 
Google Gemini An AI Revolution in Education.pptx
Google Gemini An AI Revolution in Education.pptxGoogle Gemini An AI Revolution in Education.pptx
Google Gemini An AI Revolution in Education.pptx
 
Jamworks pilot and AI at Jisc (20/03/2024)
Jamworks pilot and AI at Jisc (20/03/2024)Jamworks pilot and AI at Jisc (20/03/2024)
Jamworks pilot and AI at Jisc (20/03/2024)
 
On National Teacher Day, meet the 2024-25 Kenan Fellows
On National Teacher Day, meet the 2024-25 Kenan FellowsOn National Teacher Day, meet the 2024-25 Kenan Fellows
On National Teacher Day, meet the 2024-25 Kenan Fellows
 
How to Manage Global Discount in Odoo 17 POS
How to Manage Global Discount in Odoo 17 POSHow to Manage Global Discount in Odoo 17 POS
How to Manage Global Discount in Odoo 17 POS
 
SOC 101 Demonstration of Learning Presentation
SOC 101 Demonstration of Learning PresentationSOC 101 Demonstration of Learning Presentation
SOC 101 Demonstration of Learning Presentation
 
How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17
 
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
 
Introduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The BasicsIntroduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The Basics
 
Spatium Project Simulation student brief
Spatium Project Simulation student briefSpatium Project Simulation student brief
Spatium Project Simulation student brief
 
HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx
HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptxHMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx
HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx
 
Salient Features of India constitution especially power and functions
Salient Features of India constitution especially power and functionsSalient Features of India constitution especially power and functions
Salient Features of India constitution especially power and functions
 
HMCS Max Bernays Pre-Deployment Brief (May 2024).pptx
HMCS Max Bernays Pre-Deployment Brief (May 2024).pptxHMCS Max Bernays Pre-Deployment Brief (May 2024).pptx
HMCS Max Bernays Pre-Deployment Brief (May 2024).pptx
 
UGC NET Paper 1 Mathematical Reasoning & Aptitude.pdf
UGC NET Paper 1 Mathematical Reasoning & Aptitude.pdfUGC NET Paper 1 Mathematical Reasoning & Aptitude.pdf
UGC NET Paper 1 Mathematical Reasoning & Aptitude.pdf
 
80 ĐỀ THI THỬ TUYỂN SINH TIẾNG ANH VÀO 10 SỞ GD – ĐT THÀNH PHỐ HỒ CHÍ MINH NĂ...
80 ĐỀ THI THỬ TUYỂN SINH TIẾNG ANH VÀO 10 SỞ GD – ĐT THÀNH PHỐ HỒ CHÍ MINH NĂ...80 ĐỀ THI THỬ TUYỂN SINH TIẾNG ANH VÀO 10 SỞ GD – ĐT THÀNH PHỐ HỒ CHÍ MINH NĂ...
80 ĐỀ THI THỬ TUYỂN SINH TIẾNG ANH VÀO 10 SỞ GD – ĐT THÀNH PHỐ HỒ CHÍ MINH NĂ...
 
Making communications land - Are they received and understood as intended? we...
Making communications land - Are they received and understood as intended? we...Making communications land - Are they received and understood as intended? we...
Making communications land - Are they received and understood as intended? we...
 
Holdier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdfHoldier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdf
 
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
 
FSB Advising Checklist - Orientation 2024
FSB Advising Checklist - Orientation 2024FSB Advising Checklist - Orientation 2024
FSB Advising Checklist - Orientation 2024
 

Calculate sinb if cosb=-12 and b is in the third quadrant .Solu.pdf

  • 1. Calculate sinb if cosb=-1/2 and b is in the third quadrant . Solution First, we have to emphasize that if b is in the third quadrant, the value of sin b is negative. Due to the fact that the value of cosb is given, from enunciation, we'll calculate the value of sin b, with the help of fundamental formula of trigonometry: (sin b)^2 + (cos b)^2 = 1 But cos b = -1/2 (sin b)^2 + (-1/2)^2 = 1 We'll subtract (-1/2)^2 both sides: (sin b)^2 = 1 -1/4 sin b = -sqrt (3/9) sin b = -(sqrt 3)/3