Question

What is the exact value of the trigonometric expression?

sin(5π6)

−12
−3√2
3√2
12

Answer 1

the answer is 1/2, hope this helps !

Answer 2

1/2

Explanation:

`\sin( (5\pi)/(6) )`

Note that the reference angle is pi/6.

We know that

`\sin( (\pi)/(6) ) = (1)/(2)`

Since sin is positve in the second quadrant, sin is positve 1/2