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Popular >

1-2cos((5pi)/3)

Solution

1 - 2 cos (\frac{5 π}{3})

Solution

0

Solution steps

1 - 2 cos (\frac{5 π}{3})

Rewrite using trig identities:

cos (\frac{5 π}{3}) = \frac{1}{2}

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

Simplify

1 - 2 \cdot \frac{1}{2} : 0

= 0

Popular Examples

arctan((-9-sqrt(57))/4)

arctan (\frac{- 9 - 57}{4})

arcsin(0.69282)

arcsin (0.69282)

∣ sin (π) ∣

cos((sqrt(5))/5)

cos (\frac{5}{5})

cos (\frac{8}{3} π)

Frequently Asked Questions (FAQ)

What is the value of 1-2cos((5pi)/3) ?
The value of 1-2cos((5pi)/3) is 0