Question

Verify each of the following:

(iv) `2 sin 45^0 cos 45^0` 

Answer 1

`2  sin  45^0   cos  45^0` 

=`2xx1/sqrt(2) xx1/sqrt(2) =1`

Also, sin `90^0 =1`

∴ `2  sin 45^0  cos 45^0 = sin 90^0`