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Popular >

40cos(120)

Solution

40 cos (12 0^{\circ})

Solution

- 20

Solution steps

40 cos (12 0^{\circ})

Use the following trivial identity:

cos (12 0^{\circ}) = - \frac{1}{2}

= 40 (- \frac{1}{2})

Simplify

40 (- \frac{1}{2}) : - 20

= - 20

Popular Examples

e^{2sin(0)}*2cos(0)

e^{2 s i n (0)} \cdot 2 cos (0)

- tan (π)

arcsin(84/48 sin(30))

arcsin (\frac{84}{48} sin (3 0^{\circ}))

cos^2(pi/2)-3sin(pi/2)

cos^{2} (\frac{π}{2}) - 3 sin (\frac{π}{2})

0.15(9.8)(cos(32))+0.91(cos(58))

0.15 (9.8) (cos (3 2^{\circ})) + 0.91 (cos (5 8^{\circ}))

Frequently Asked Questions (FAQ)

What is the value of 40cos(120) ?
The value of 40cos(120) is -20