If tan(x)=2 and cos(x) is negative, what would the sin(x) be equal to?

fcas802021-04-07T19:18:14Z

Favorite Answer

By Oythagorean Theorem, hypotensue = sqrt(5)

tan pos & cos neg suggests third quadrant, where sin is ngetaive

sin x = - 2/sqrt(5)

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