en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

10cos(15)

Solution

10 cos (1 5^{\circ})

Solution

\frac{5 ( 6 + 2 )}{2}

+1

Solution steps

10 cos (1 5^{\circ})

Rewrite using trig identities:

cos (1 5^{\circ}) = \frac{6 + 2}{4}

= 10 \cdot \frac{6 + 2}{4}

Simplify

10 \cdot \frac{6 + 2}{4} : \frac{5 ( 6 + 2 )}{2}

= \frac{5 ( 6 + 2 )}{2}

Popular Examples

2sin(pi/3)sin(pi/4)

2 sin (\frac{π}{3}) sin (\frac{π}{4})

arcsin (\frac{24}{29})

-2cos((2pi)/3)csc(((pi/3))/2)

- 2 cos (\frac{2 π}{3}) csc (\frac{( \frac{π}{3} )}{2})

1/2 (7)(10)(cos(pi/4))(-pi/(45))

\frac{1}{2} (7) (10) (cos (\frac{π}{4})) (- \frac{π}{45})

3*cot(45/2)*cot(75/2)*cot(60/2)

3 \cdot cot (\frac{45}{2}) \cdot cot (\frac{75}{2}) \cdot cot (\frac{60}{2})

Frequently Asked Questions (FAQ)

What is the value of 10cos(15) ?
The value of 10cos(15) is (5(sqrt(6)+sqrt(2)))/2