Can someone help me??? Which of the following is equal to 1/2 or -1/2? Check all that apply.

Sin (7π/6)

Sin (4π/3)

Cos (5π/3)

Cos (π/6)

Cos (5π/6)

Sin (5π/6)

Cos (5π/3)

Cos (π/6)I think this one

Below in bold.

Step-by-step explanation:

The sine is positive in the first and second quadrants and negative in other 2.

The cosine is positive in the first and 4th quadrants and negative in other 2.

Note that sin(pi/6) = 1/2 and cos(pi/3 = 1/2).

sin(7pi/6) = 1/2  

cos(5pi/3) = 1/2

sin(5pi/6) = 1/2

57 732

step-by-step explanation:

i dont really.know

y do u put "subscirbe to ence" on a app for ppl who need with their work?