SOLUTION: Let θ be an angle in quadrant IV such that sinθ =−5/8
.
Find the exact values of secθ and cotθ.
Algebra ->
Trigonometry-basics
-> SOLUTION: Let θ be an angle in quadrant IV such that sinθ =−5/8
.
Find the exact values of secθ and cotθ.
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Draw a right triangle in quadrant IV,
Since the sine is opposite/hypotenuse, label the opposite
side as the numerator of , which is -5, and
the hypotenuse as +8. Then use the Pythagorean theorem
to find the length of the adjacent side .
Edwin
