find the value of sin negtive 1 (sin 5pie/6) i put 5pie /6.but it ws wrong can you correct

Answer 1

first of all find sin 5pi/6 which is 1/2

so now you want the sin^-1 (1/2), which
is pi/6 or 5pi/6

adding 2pi (which is the period of the sine curve), to each of the above answers would result in more solutions.
Your answer was not "wrong", it just wasn't complete.

Answer 2

so the nswer is pi/8 nd 7pi/6 if wrong correct

Answer 3

from where did you get pi/8 ????

I gave you the answer as pi/6 and 5pi/6.

let's look at the question in degrees, perhaps you are more comfortable with degrees.

sin negative 1 (sin 5pie/6)
= sin^-1 (sin 150º)
= sin^-1 (1/2)
= 30º or 150º

30º = pi/6 radians and 150º is 5pi/6 radians