Write each expression in terms of the same trig function of the reference angle.
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sin 112°.
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tan (-130.5°).
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csc 307°.
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cot (143°20').
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cos (-19.6°).
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sec 236°.
Find the exact value of each expression.
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sin 150°.
-
sec 315°.
-
tan 240°.
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cot 135 °.
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cos 120°.
-
csc 300°.
-
Prove: csc (-q) tan (-q) cos (-q) = 1.
Use the unit circle to find all values of q between 0 and 2p for which:
-
sin q =
.
-
cos q = -
.
