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Popular >

cos(0-pi/2)

Solution

cos (0 - \frac{π}{2})

Solution

0

Solution steps

cos (0 - \frac{π}{2})

Simplify

= cos (- \frac{π}{2})

Use the following property:

cos (- x) = cos (x)

cos (- \frac{π}{2}) = cos (\frac{π}{2})

= cos (\frac{π}{2})

Use the following trivial identity:

cos (\frac{π}{2}) = 0

cos (\frac{π}{2})

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}

= 0

= 0

Popular Examples

sin (0) + 2

sin (0) + 0

arcsec (- 0.5)

-3400cos(40)+3656

- 3400 cos (4 0^{\circ}) + 3656

34 sin (2 0^{\circ})

Frequently Asked Questions (FAQ)

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