Question

if sin a is equal to 1 upon 2 then the value of cos A is​

Answer 1

Answer:

1 + 2 sin A cos A = 1/4.

Step-by-step explanation:

follow

Answer 2

Given :-

• Sin A = 1/2

To Find :-

• Cos A = ?

Solution :-

Sin A = 1/2

Sin A = Sin 30°

A = 30°

Putting A in Cos A

We get,

Cos 30° = √3/2