Is (1-tan^2(x))=sec^2(x)-2tan(x) ?

The answer to whether (1-tan^2(x))=sec^2(x)-2tan(x) is False

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prove (1-tan^2(x))=sec^2(x)-2tan(x)

prove

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

False

Solution steps

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

Show that the two sides are not equal

\Rightarrow False

(\frac{1}{2} sin (2 x)) (1 - cos (4 x)) = sin^{3} (2 x)

81 - 9 (3 sin (x))^{2} = 11

sin^{3} (2 x) = \frac{1}{2} sin (2 x) (1 - cos (4 x))

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

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

Is (1-tan^2(x))=sec^2(x)-2tan(x) ?
The answer to whether (1-tan^2(x))=sec^2(x)-2tan(x) is False