What is the value of cos(pi/2)-pi/2 sin(pi/2) ?

The value of cos(pi/2)-pi/2 sin(pi/2) is -pi/2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

cos(pi/2)-pi/2 sin(pi/2)

cos (\frac{π}{2}) - \frac{π}{2} sin (\frac{π}{2})

- \frac{π}{2}

Solution steps

cos (\frac{π}{2}) - \frac{π}{2} sin (\frac{π}{2})

Use the following trivial identity:

cos (\frac{π}{2}) = 0

Use the following trivial identity:

sin (\frac{π}{2}) = 1

= 0 - \frac{π}{2} \cdot 1

Simplify

= - \frac{π}{2}

1000 cos (3 0^{\circ})

cot (\frac{π}{9})

2 cos (\frac{π}{2}) + sin (2 (\frac{π}{2}))

300 \cdot cos (5 5^{\circ}) \cdot 42

20 cos (5 5^{\circ})

What is the value of cos(pi/2)-pi/2 sin(pi/2) ?
The value of cos(pi/2)-pi/2 sin(pi/2) is -pi/2