Zaira L.
asked • 06/22/21Suppose that cos0=6/7 and that π <0 <3π/2. Find the values of sin0, tan0, csc0, sec0, and cot0.
sin0=?
tan0=?
csc0=?
sec0=?
cot0=?
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1 Expert Answer
I'm assuming that 0 is a theta θ or angle measure.
The inequality says that θ is in the third quadrant, so cos, sin, sec, and csc are negative while tan and cot are positive.
Draw a triangle and use Pythagorean Theorem to find the third "side" (which will be the opposite or vertical side).
Then find the ratios using SOHCAHTOA from your triangle.
Mark M.
As you say, cosine is negative so cosine cannot be equal to 6/7.
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06/23/21
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Mark M.
Either draw and label a diagrram or consult a unit circle.06/22/21