Is prove-2cos(x)sec^2(x)=-2/(cos(x)) ?

The answer to whether prove-2cos(x)sec^2(x)=-2/(cos(x)) is True

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

prove-2cos(x)sec^2(x)=-2/(cos(x))

prove

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

True

Solution steps

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

Manipulating left side

- 2 cos (x) sec^{2} (x)

Express with sin, cos

= - \frac{2}{cos ( x )}

We showed that the two sides could take the same form

\Rightarrow True

1 + sin (4 a) + sin (2 a) = sin (2 a)

cot (x) sec (x) = \frac{1}{sin ( x )}

tan^{2} (x) sin^{2} (x) = tan^{2} (x) + sin^{2} (x)

cos (- \frac{π}{6}) = sin (- \frac{π}{6} + \frac{π}{2})

3 sin (2 x - 15) = cos (2 x - 15)

Is prove-2cos(x)sec^2(x)=-2/(cos(x)) ?
The answer to whether prove-2cos(x)sec^2(x)=-2/(cos(x)) is True