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Popular >

5cos(150)

Solution

5 cos (15 0^{\circ})

Solution

- \frac{5 3}{2}

+1

Solution steps

5 cos (15 0^{\circ})

Use the following trivial identity:

cos (15 0^{\circ}) = - \frac{3}{2}

= 5 (- \frac{3}{2})

Simplify

5 (- \frac{3}{2}) : - \frac{5 3}{2}

= - \frac{5 3}{2}

Popular Examples

4cot^3(135)+7tan^4(150)-csc^2(240)

4 cot^{3} (13 5^{\circ}) + 7 tan^{4} (15 0^{\circ}) - csc^{2} (24 0^{\circ})

cos (π (2))

arccos((3.9)/(8.5))

arccos (\frac{3.9}{8.5})

(tan(12))/(1-tan^2(12))

\frac{tan ( 1 2 ^{\circ} )}{1 - tan ^{2} ( 1 2 ^{\circ} )}

sin(105)sin(15)

sin (10 5^{\circ}) sin (1 5^{\circ})

Frequently Asked Questions (FAQ)

What is the value of 5cos(150) ?
The value of 5cos(150) is -(5sqrt(3))/2