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Question
Find the slope of a line joining the points
(sin θ, – cos θ) and (– sin θ, cos θ)
Solution
The given points is (sin θ, – cos θ) and (– sin θ, cos θ)
Slope of a line = `(y_2 - y_1)/(x_2 - x_1)`
= `(costheta + cos theta)/(-sin theta - sintheta)`
= `(2costheta)/(-2sintheta)`
= – cot θ
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