Question

Prove:- cos² Q + sin²0 = 1 ​

Answer 1

Step-by-step explanation:

If you know the sin , cos Tan table

Put Q = 45°

But sin45 = cos45 = 1/√2

So sin²45 + cos²45 = 1/2 + 1/2 = 1

Similar you can put any value such as 0 , 30 , 90 etc

Your answer will be one.

Hence proved