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How You Solve Sin X = Tan X?

4 Answers

Ali Baig Profile
Ali Baig answered

tanx-sinx=0.75

Anonymous Profile
Anonymous answered
Tanx=sinx
sinx/cosx=sinx
sinx=sinx*cosx
0=sinx*cosx-sinx
0=sinx(cosx-1)
sinx=0     cosx=1
x1=k*pi    x2=2*k*pi ; k € IR
x1 covers both so x=k*pi.
Anonymous Profile
Anonymous answered
Since tanx = sinx/cosx,

sinx = sinx/cosx

multiply both sides by cosx

so sinxcosx = sinx

divide both sides by sinx

cosx = 1

x = 2pi

does that sound right? I'm doing an assignment with this question right now :)

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