Question

Q.
[tex] \: [/tex]
4 . sin(15°) = ..​

..

Answer 1

4 × sin ( 15° )

4 × sin ( 45° - 30° )

4 × ( sin 45°( cos 30° ) - cos 45° ( sin 30° ) )

4 × ( ½ ( √2 ) ( ½ ( √3 ) - ½ ( √2 ) ( ½ ) )

4 × ( ½√2 ( ½√3 ) - ½√2 ( ½ ) )

4 × ( ¼ × √6 - ¼√2 )

4 × ¼ ( √6 - √2 )

4/4 ( √6 - √2 )

1 ( √6 - √2 )

√6 - √2