Is tan^2(x)-sin^2(x)=tan^2(x) ?

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

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

prove tan^2(x)-sin^2(x)=tan^2(x)

prove

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

False

Solution steps

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

Show that the two sides are not equal

For

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

plug in

x = 1

tan^{2} (1) - sin^{2} (1) = 1.71744 \dots

tan^{2} (1) - sin^{2} (1)

Refine to a decimal form

= 1.71744 \dots

tan^{2} (1) = 2.42551 \dots

tan^{2} (1)

Refine to a decimal form

= 2.42551 \dots

The two sides are not equal

\Rightarrow False

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