Autumn N.

asked • 02/01/22

Trigonometry Help

Find the exact values other 5 trig functions given that cosθ=513. (use fractions, and sqrt() to represent any radicals. i.e. sqrt(2)=2√)

sinθ=


tanθ=


cscθ=


secθ=


cotθ=



Mark M.

cosine is not greater than 1. Review your post for accuracy. And try one or two before you post all of these.
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02/02/22

Autumn N.

It’s supposed to be 5/13
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02/02/22

Mark M.

So now use the definitions of the remaining 5 trig functions.
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02/02/22

Edward A.

Autumn: Mark is (as always) right, as is the tutor who answered. FYI Here’s a convenient simplification: you know about 3-4-5 right triangles. They have bigger siblings. whenever you see fractions involving 5, 12, and 13, check to see if it’s a 5-12-13 right triangle. In that case you don’t need the effort of computing Pythagorean distance. Also 7-24-25.
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02/03/22

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