Home
Class 10
MATHS
[" 27.If "sin(A+B)=sin A cos B+cos A sin...

[" 27.If "sin(A+B)=sin A cos B+cos A sin B],[" and "cos(A-B)=cos A cos B+sin A sin B],[" find the values of "(i)sin75^(@)" and (ii) "cos15^(@)]

Promotional Banner

Similar Questions

Explore conceptually related problems

If sin (A-B)=sin A cos B-cos A sin B and cos (A - B) = cos A cos B + sin A sin B . find the values of sin 15^@ and cos 15^@.

If sin(A+B)=sinAcosB+cosAsinB and cos(A-B)=cosAcosB+sinAsinB , find the values of (i) sin75^(@) and (ii) cos15^(@) .

Ifsin(A-B)= sin A cosB-cos A sin B and cos(A-B) = cosA cosB + sin A sin B. Find the values of sin 15^@ and cos 15^@ .

Given that sin(A+B)=sin A cos B+cos A sin B, find the value of sin75o.

Given that sin (A+ B) = sin A cos B + cos A sin B , find the value of sin 75° .

Using the formula of sin(A-B)=sin A cos B-cos A sin B find the value of sin15^(@)

Given that cos (A + B) = cos A cos B-sin A sin B. Find the value of cos 105^@ .

Prove that : sin(A- B) = sin A cos B -cos A sin B .

Prove that : cos (A - B) = cos A cos B + sin A sin B .

sin A-sin B and cos A + cos B