Question

the value of cos2 26- sin2 64 is

Answer 1

Step-by-step explanation:

the answer is zero

as cos^2(90-64)-sin^2 64

sin^2 64- sin^2 64

=》0

Answer 2

Answer:

The answer will be 0.

Step-by-step explanation:

$\cos{}^{2} \: 26 \: - \sin^{2} 64$

$\cos^{2}(90 - 64) - \sin^{2} 64$

$\sin^{2}64 - \sin^{2} 64$

$0$

Value will be 0.