Evaluate
\frac{-2\cos(2x)\cos(4x)-\cos(4x)+3}{4x^{2}}
Differentiate w.r.t. x
\frac{12x\cos(x)\left(\sin(x)\right)^{5}+28x\sin(x)\left(\cos(x)\right)^{5}+12\left(\cos(x)\right)^{2}\left(\sin(x)\right)^{4}-16\left(\sin(x)\right)^{2}\left(\cos(x)\right)^{4}+4\left(\cos(x)\right)^{6}-7x\left(\sin(2x)\right)^{3}-4}{2x^{3}}
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Trigonometry
5 problems similar to:
\frac{ 1- \cos ( x ) \cos ( 2x ) \cos ( 3x ) }{ { x }^{ 2 } }
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