Is cos(θ)=sqrt(1-sin^2(θ)) ?

The answer to whether cos(θ)=sqrt(1-sin^2(θ)) is False

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prove cos(θ)=sqrt(1-sin^2(θ))

prove

cos (θ) = 1 - sin^{2} (θ)

False

Solution steps

cos (θ) = 1 - sin^{2} (θ)

Show that the two sides are not equal

\Rightarrow False

\frac{sec ( θ ) - cos ( θ )}{tan ( θ )} = sin (θ)

2 sin (\frac{3 π}{2}) = - 2 + cos (\frac{3 π}{2})

(sec (x) - tan (x))^{2} = tan (x) cot (x)

sin (x) = \frac{tan ( x ) cot ( x )}{csc ( x )}

cos (x) - sec (x) = cos (x) - \frac{1}{cos ( x )}

Is cos(θ)=sqrt(1-sin^2(θ)) ?
The answer to whether cos(θ)=sqrt(1-sin^2(θ)) is False