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Popular >

cos(60)*15

Solution

cos (6 0^{\circ}) \cdot 15

Solution

\frac{15}{2}

+1

Solution steps

cos (6 0^{\circ}) \cdot 15

Use the following trivial identity:

cos (6 0^{\circ}) = \frac{1}{2}

= \frac{1}{2} \cdot 15

Simplify

\frac{1}{2} \cdot 15 : \frac{15}{2}

= \frac{15}{2}

Popular Examples

2sec^2(45)sec(30)-3cos(60)tan(60)

2 sec^{2} (4 5^{\circ}) sec (3 0^{\circ}) - 3 cos (6 0^{\circ}) tan (6 0^{\circ})

1/(arctan(3/4))

\frac{1}{arctan ( \frac{3}{4} )}

sin^2(45)+8cos^2(30)

sin^{2} (4 5^{\circ}) + 8 cos^{2} (3 0^{\circ})

cos (0.6593)

tan (3 0^{\circ}) tan (6 0^{\circ})

Frequently Asked Questions (FAQ)

What is the value of cos(60)*15 ?
The value of cos(60)*15 is 15/2