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Popular >

(-cos^4(0))/4

Solution

\frac{- cos ^{4} ( 0 )}{4}

Solution

- \frac{1}{4}

+1

Decimal Notation

- 0.25

Solution steps

\frac{- cos ^{4} ( 0 )}{4}

Use the following trivial identity:

cos (0) = 1

cos (0)

cos (x)

periodicity table with

2 πn

cycle:

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} cos (x) 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} cos (x) - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2} 0 \frac{1}{2} \frac{2}{2} \frac{3}{2}

= 1

= \frac{- 1 ^{4}}{4}

Simplify

= - \frac{1}{4}

Popular Examples

tan (\frac{5}{7})

arcsin (50)

(sin(pi/3)-cos(pi/6))/(tan(pi/3))

\frac{sin ( \frac{π}{3} ) - cos ( \frac{π}{6} )}{tan ( \frac{π}{3} )}

arctan((-4)/(-6))

arctan (\frac{- 4}{- 6})

csc^{3} (\frac{π}{4})

Frequently Asked Questions (FAQ)

What is the value of (-cos^4(0))/4 ?
The value of (-cos^4(0))/4 is -1/4