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01-10-2017
Mathematics

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cosx - 4 = sinx -4
(0,2pi)
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jdoe0001 jdoe0001

01-10-2017

[tex]\bf cos(x)-4=sin(x)-4\implies cos(x)=sin(x)\implies \cfrac{cos(x)}{sin(x)}=0 \\\\\\ cot(x)=0\implies \measuredangle x=cot^{-1}(0)\implies \measuredangle x=\frac{\pi }{2}~~,~~\frac{3\pi }{2}[/tex]

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