Solve for x: sin x - sin x tan x = 0 I've tried using trig identities to make them all in the same term (sin/cos/tan) but was not sucessful.
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Originally Posted by Hasan1 Solve for x: sin x - sin x tan x = 0 I've tried using trig identities to make them all in the same term (sin/cos/tan) but was not sucessful. Factor: $\displaystyle sin(x) - sin(x)~tan(x) = 0$ $\displaystyle sin(x)(1 - tan(x)) = 0$ Thus either $\displaystyle sin(x) = 0 \implies x = 0, \pi$ or $\displaystyle 1 - tan(x) = 0 \implies x = \frac{\pi}{4}, \frac{5\pi}{4}$ -Dan
oh wow that is much more simple than I was making it out to be , Thanks for your prompt help!
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