Question

Value of sin15 in fraction

Answer 1

Hi ,

Sin 15°

= Sin( 45 - 30 )

= Sin45cos30 - cos45sin30

= ( 1/√2 ) ( √3/2 ) - ( 1/√2 ) ( 1/2 )

= ( √3/2√2 ) - ( 1/2√2 )

= ( √3 - 1 ) / ( 2√2 )

I hope this helps you.

: )

Answer 2

$\frac{1}{4}$