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Popular Trigonometry >

sqrt(cos(pi/2))

Solution

cos (\frac{π}{2})

Solution

0

Solution steps

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

Simplify

= 0

Popular Examples

cos(pi(-8.3-5.4))+sin(pi(8.3-5.4))

arcsin(1/(1.53))

sin(200)cos(80)-cos(200)sin(80)

arcsin(1/(1.52))

sqrt(2/(pi*0.1)tan((pi*0.1)/2))

Frequently Asked Questions (FAQ)

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