Question

If Sin A=3/5, find ços A​

Answer 1

Sin²A+cos²A=1 apply this formula

Answer 2

Answer:

The answer will be 4/5.

Step-by-step explanation:

Sin A = 3/5;

square bothe side;

Sin^2 A = 9/25;

Using identity, Sin^2 A + Cos^2 A = 1.

Hence, 9/25 + cos^2 A = 1

cos^2 A = 1 - 9/25;

Cos^2 A = 16/25;

Thus, Cos A = 4/5.

That's all.