What is cos(3x)cos(x)-sin(3x)sin(x) ?

The solution to cos(3x)cos(x)-sin(3x)sin(x) is cos(3x+x)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify cos(3x)cos(x)-sin(3x)sin(x)

simplify

cos (3 x) cos (x) - sin (3 x) sin (x)

cos (3 x + x)

Solution steps

cos (3 x) cos (x) - sin (3 x) sin (x)

Use the Angle Sum identity:

cos (s) cos (t) - sin (s) sin (t) = cos (s + t)

= cos (3 x + x)

2^{\frac{1}{0}}

1 6^{7}

2 x 5^{6} + 7 x 5^{4} + 3 x 5^{2} + 6

\frac{( - 15 )}{( - 3 )}

\frac{x - 5}{2 x - 10} + \frac{4 x}{3}

What is cos(3x)cos(x)-sin(3x)sin(x) ?
The solution to cos(3x)cos(x)-sin(3x)sin(x) is cos(3x+x)