Evaluate the sine, cosine, tangent, cosecant, secant, and cotangent of t = (-(2π/3)).

Question

Evaluate the sine, cosine, tangent, cosecant, secant, and cotangent of t = (-(2π/3)).

If the trigonometric function is undefined, enter "u"

sin (-(2π/3))= ?

cos (-(2π/3)) = ?

tan (-(2π/3)) = ?

csc (-(2π/3)) = ?

sec (-(2π/3)) = ?

cot (-(2π/3)) = ?

Answer 1

-2π / 3 = 4π / 3

Look at the unit circle.