Prove cos - -x cos -x sin - -x cos - 2 -x - 2 x

cos( π +x ) #160; cos( x ) #160; #160; sin( π x ) #160; cos( π #160; 2 +x ) #160; #160; #160; cos( x ) ×( cos x #160; ) # ...

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General Solution of Trigonometric Equation

Prove cos π...

Question

Prove $\frac{cos (π + x) cos (- x)}{sin (π - x) cos (\frac{π}{2} + x)} = {cot}^{2} x$

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\frac{cos (π + x) cos (- x)}{sin (π - x) cos (\frac{π}{2} + x)} = {cot}^{2} x

\frac{c o s (π + x) c o s (- x)}{s i n (π - x) c o s (\frac{π}{2} + x)} = c o t^{2} x

\frac{cos (π + x) cos (- x)}{sin (π - x) cos (\frac{π}{2} + x)} = {cot}^{2} x

Prove the following:

= $\frac{cos (π + x) cos (- x)}{sin (π - x) c o s (\frac{π}{2} + 2)} = c o t^{2} x$

\frac{cos (π + x) cos (- x)}{sin (π - x) cos (\frac{π}{2} + x)} = {cot}^{2} x

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