Question

without using tables find the value of sin 75​

Answer 1

Step-by-step explanation:

sin 75 = sin (30 + 45)

By trigonometric identities, sin (A + B) = sin A cos B + cos A sin B

This means, sin 75

= sin 30 cos 45 + cos 30 sin 45

= (1/2) (1/root2) + ((root3)/2) (1/root2)

= (1 + root3) / (2*root 2)

Answer 2

Answer:

hope this helps uh out!!!!