Which expression is equivalent to sin7pi/6?

a. sinpi/6
b. sin5pi/6
c. sin5pi/3
d. sin11pi/6

The answer choice is D because sin7pi/6 which it’s exact form is -1/2 the only answer choice which the same exact form is D.

(-1,0) and (4,0) are x-intercepts.

step-by-step explanation:

x-intercepts are all points on the x-axis.

points (-1,0) and (4,0) are both x -intercepts.

check the picture below.