Question

please give me answer I am not able to understand this please ho cw​

Answer 1

Answer:

1

Step-by-step explanation:

To solve this problems we use three formulas

$\cos(90 - \alpha ) = \sin\alpha$

$\sin(90 - \alpha ) = \cos\alpha$

${ \sin }^{2} \alpha + { \cos }^{2} \alpha = 1$

Now let use solve problem

$\sin(theta) \cos(90 - theta ) + \cos(theta) \sin(90 - theta)$

$\sin(theta) \sin(theta) + \cos(theta) \cos(theta)$

${ \sin }^{2}theta + { \cos }^{2}theta$

=1

I hope you are satisfied by my answer.