What is cos(180-x)-cos(x) ?

The solution to cos(180-x)-cos(x) is -2cos(x)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify cos(180-x)-cos(x)

simplify

cos (18 0^{\circ} - x) - cos (x)

- 2 cos (x)

Solution steps

cos (18 0^{\circ} - x) - cos (x)

Rewrite using trig identities

= - cos (x) - cos (x)

Add similar elements:

- cos (x) - cos (x) = - 2 cos (x)

= - 2 cos (x)

sin^{2} (18 0^{\circ} + x)

2 sin (\frac{π}{3} + D) + 6

cos (θ^{1} - θ^{2})

cos (x - \frac{7 π}{4})

sin (- x) cos (- x) csc (- x)