Is csc^2(θ)(1-cos^2(θ))=-cos(pi/2) ?

The answer to whether csc^2(θ)(1-cos^2(θ))=-cos(pi/2) is False

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prove csc^2(θ)(1-cos^2(θ))=-cos(pi/2)

prove

csc^{2} (θ) (1 - cos^{2} (θ)) = - cos (\frac{π}{2})

False

Solution steps

csc^{2} (θ) (1 - cos^{2} (θ)) = - cos (\frac{π}{2})

Show that the two sides are not equal

\Rightarrow False

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

csc^{2} (x) tan^{2} (x) = \frac{1}{cos ^{2} ( x )}

\frac{tan ( x )}{sin ( x ) cos ( x )} = tan^{2} (x) + 1

cos (θ) = 2 cos^{2} (\frac{θ}{2}) - 1

1 - sin^{2} (u) = cos^{2} (u)

Is csc^2(θ)(1-cos^2(θ))=-cos(pi/2) ?
The answer to whether csc^2(θ)(1-cos^2(θ))=-cos(pi/2) is False