Is 2*sin(x)=sin(2x) ?

The answer to whether 2*sin(x)=sin(2x) is False

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prove 2*sin(x)=sin(2x)

prove

2 \cdot sin (x) = sin (2 x)

False

Solution steps

2 sin (x) = sin (2 x)

Show that the two sides are not equal

\Rightarrow False

cot (\frac{π}{2} - θ) = \frac{sin ( θ )}{cos ( θ )}

\frac{sec ^{2} ( x )}{tan ( x )} = tan (x) + cot (x)

tan^{2} (A) (csc^{2} (A) - 1) = 1

cos^{3} (θ) = - 1

1 + cos (x) = \frac{csc ( x ) + cot ( x )}{csc ( x )}