Is cos((5θ)/2)cos(θ/2)= 1/4 cos^2(5θ) ?

The answer to whether cos((5θ)/2)cos(θ/2)= 1/4 cos^2(5θ) is False

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prove cos((5θ)/2)cos(θ/2)= 1/4 cos^2(5θ)

prove

cos (\frac{5 θ}{2}) cos (\frac{θ}{2}) = \frac{1}{4} cos^{2} (5 θ)

False

Solution steps

cos (\frac{5 θ}{2}) cos (\frac{θ}{2}) = \frac{1}{4} cos^{2} (5 θ)

Show that the two sides are not equal

\Rightarrow False

sin (3 v) = 3 sin (v) - 4 sin^{3} (v)

2 sin (x + \frac{π}{4}) = sin (x) + cos (x)

\frac{csc ( x ) + 1}{csc ( x )} = 1 + sin (x)

cos (x + x) = cos^{2} (x) - sin^{2} (x)

\frac{sin ( x )}{3 sin ( 2 x )} = \frac{1}{2 cos ( x )}

Is cos((5θ)/2)cos(θ/2)= 1/4 cos^2(5θ) ?
The answer to whether cos((5θ)/2)cos(θ/2)= 1/4 cos^2(5θ) is False