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How do you solve $cos θ = - 35$ $costheta=-35$ with theta in Q2?

1 Answer

Jan 8, 2017

$The Soln. Set= ϕ .$ $"The Soln. Set="phi.$

Explanation:

Recall that $- 1 \leq cos θ \leq 1$ $-1<= cos theta <= 1$ , so there can not be any $θ$ $theta$

such that $cos θ = - 35$ $cos theta=-35$ .

Hence, $the Soln. Set= ϕ .$ $"the Soln. Set="phi.$

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