en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

6cos(-pi/4)

Solution

6 cos (- \frac{π}{4})

Solution

32

+1

Solution steps

6 cos (- \frac{π}{4})

Rewrite using trig identities:

cos (- \frac{π}{4}) = \frac{2}{2}

= 6 \cdot \frac{2}{2}

Simplify

6 \cdot \frac{2}{2} : 32

= 32

Popular Examples

(tan(73)-tan(13))/(1+tan(73)tan(13))

\frac{tan ( 7 3 ^{\circ} ) - tan ( 1 3 ^{\circ} )}{1 + tan ( 7 3 ^{\circ} ) tan ( 1 3 ^{\circ} )}

400 sin (4 5^{\circ})

arccos(3/(sqrt(34)))

arccos (\frac{3}{34})

(2tan((2pi)/7))/(1-tan^2((2pi)/7))

\frac{2 tan ( \frac{2 π}{7} )}{1 - tan ^{2} ( \frac{2 π}{7} )}

10 sin (\frac{π}{6})

Frequently Asked Questions (FAQ)

What is the value of 6cos(-pi/4) ?
The value of 6cos(-pi/4) is 3sqrt(2)