Is csc(θ)cos(θ)=cot(θ) ?

The answer to whether csc(θ)cos(θ)=cot(θ) is True

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

prove csc(θ)cos(θ)=cot(θ)

prove

csc (θ) cos (θ) = cot (θ)

True

Solution steps

csc (θ) cos (θ) = cot (θ)

Manipulating left side

csc (θ) cos (θ)

Express with sin, cos

csc (θ) cos (θ)

Use the basic trigonometric identity:

csc (θ) = \frac{1}{sin ( θ )}

= \frac{1}{sin ( θ )} cos (θ)

Simplify

\frac{1}{sin ( θ )} cos (θ) : \frac{cos ( θ )}{sin ( θ )}

\frac{1}{sin ( θ )} cos (θ)

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 cos ( θ )}{sin ( θ )}

Multiply:

1 \cdot cos (θ) = cos (θ)

= \frac{cos ( θ )}{sin ( θ )}

= \frac{cos ( θ )}{sin ( θ )}

= \frac{cos ( θ )}{sin ( θ )}

Use the basic trigonometric identity:

\frac{cos ( θ )}{sin ( θ )} = cot (θ)

= cot (θ)

We showed that the two sides could take the same form

\Rightarrow True