SOLUTION: Verify this trigonometric identity Sin(a+b)sin(a-b)=cos^2(b)-cos^2(a)

SOLUTION: Verify this trigonometric identity Sin(a+b)sin(a-b)=cos^2(b)-cos^2(a)

Algebra.Com

Question 1020984: Verify this trigonometric identity
Sin(a+b)sin(a-b)=cos^2(b)-cos^2(a)
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!

=
=
=
RELATED QUESTIONS
An important trigonometric identity is cos(a + b) = cos a cos b − sin a sin b,... (answered by Alan3354)

Verify the identity: sin(a-b)- sin (a+b) - sin^2 b - cos^2 a = (sin b -cos a)^2 I am... (answered by Fombitz)

verify the identity cos^2 B-sin^2 B=1-2sin^2... (answered by lwsshak3,w_parminder)

Verify the identity 3 cos^2 B − 3 sin^2 B = 6 cos^2 B − 3... (answered by Alan3354)

Prove that: (sin a cos b+cos a sin b)^2+(cos a cos b-sin a sin b)^2 =... (answered by solver91311)

Simplify the lefthandside so that LHS=RHS 2/sin(b) = sin(b)/cos(b)-1 + sin(b)/cos(b)+1 (answered by greenestamps,solver91311,ikleyn)

Please help me prove this??? Prove the identity sin(A+B) cos B − cos(A+B) sin B =... (answered by jsmallt9)

prove the following as an identity; cos(a-b) - cos(a+b) =... (answered by Cromlix)

Q= if cos A/cos B = a , sin A/sin B = b , then sin^2 B is equal to... (answered by JBnovelwriter)