What is 3cos(2θ-60)-2 ?

The solution to 3cos(2θ-60)-2 is 3(1/2 cos(2θ)+(sqrt(3))/2 sin(2θ))-2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify 3cos(2θ-60)-2

simplify

3 cos (2 θ - 6 0^{\circ}) - 2

3 (\frac{1}{2} cos (2 θ) + \frac{3}{2} sin (2 θ)) - 2

Solution steps

3 cos (2 θ - 6 0^{\circ}) - 2

Rewrite using trig identities

= 3 (\frac{1}{2} cos (2 θ) + \frac{3}{2} sin (2 θ)) - 2

sin (\frac{x}{2} + \frac{π}{2})

sin^{2} (x - \frac{π}{4})

cos (π - t)

cos (x - \frac{3 π}{2})

cos (2 t - 2 π)

What is 3cos(2θ-60)-2 ?
The solution to 3cos(2θ-60)-2 is 3(1/2 cos(2θ)+(sqrt(3))/2 sin(2θ))-2