Question

Solve this by trigonometry..

Answer 1

Answer:

1. Sin ( - 60 ) = - sqrt 3/2

2. Cos ( - 60) = cos 60 = 1/2

3. Tan ( 210 ) = Tan (180 + 30) = - Tan 30 = - 1/ sqrt 3

4. Cos 180 = - 1

5. Sin 180 = 1

6. Sin ( 750) = sin ( 2* 360 + 30 ) = sin 30 = 1/2

7. Cos 1110 = cos ( 3 * 360 + 30) = - cos 30 = - 1/2

8. Tan ( 1485) = Tan ( 4*360 + 45 ) = tan 45 = 1

9. Sin ( 510) = sin( 3*180 - 30) = sin 30 = 1/2

Answer 2

Answer:

hope it will help u.......