What is 2sin^2(x)+sin(x)-1 ?

The solution to 2sin^2(x)+sin(x)-1 is sin(x)-cos(2x)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify 2sin^2(x)+sin(x)-1

simplify

2 sin^{2} (x) + sin (x) - 1

sin (x) - cos (2 x)

Solution steps

2 sin^{2} (x) + sin (x) - 1

Use the Double Angle identity:

1 - 2 sin^{2} (x) = cos (2 x)

- 1 + 2 sin^{2} (x) = - cos (2 x)

= sin (x) - cos (2 x)

8 \cdot \frac{2}{5}

- \frac{2}{3} \cdot (- 4)

85 \cdot 5

3 y^{2} - 2 y

x^{2} + 40 x + 400

What is 2sin^2(x)+sin(x)-1 ?
The solution to 2sin^2(x)+sin(x)-1 is sin(x)-cos(2x)