Flag Trigonometry> Please provide me the solution of this qu...
question mark

Please provide me the solution of this question. Question no. 5(in the image)

Shaurya , 8 Years ago
Grade 12th pass
anser 1 Answers
Sandeep Tegala

Last Activity: 8 Years ago

write sin(90+30-A)=cos(30-A)
       sin(90+30+A)=cos(30+A)
the sum reduces to cos^2(30+A)+cos^2(30-A)+sin^2(A)
expand it and put cos30 and sin30 values it simplifies to 3/2(cos^2+sin^2)=3/2

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments