Without using a calculator, compute the sine, cosine, and tangent of 150° by using the reference angle.
(Type sqrt(2) for $\sqrt{2}$ and sqrt(3) for $\sqrt{3}$.)
What is the reference angle? degrees.
In what quadrant is this angle? (answer I, II, III, or IV)
sin(150°) =
cos(150°) =
tan(150°) =
Calculator
• Question 8
Find the exact value.
sin(1290°) =
cos(1290°) =