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Popular >

9sin(pi/2)

Solution

9 sin (\frac{π}{2})

Solution

9

Solution steps

9 sin (\frac{π}{2})

Use the following trivial identity:

sin (\frac{π}{2}) = 1

sin (\frac{π}{2})

sin (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} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{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} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

= 1

= 9 \cdot 1

Simplify

= 9

Popular Examples

cot (2)

- \frac{cos ^{3} ( 0 )}{3}

sin(2arccos(7/25))

sin (2 arccos (\frac{7}{25}))

sec(arcsin((2sqrt(5))/9))

sec (arcsin (\frac{2 5}{9}))

tan(arccos((sqrt(3))/2)-arcsin(-3/5))

tan (arccos (\frac{3}{2}) - arcsin (- \frac{3}{5}))

Frequently Asked Questions (FAQ)

What is the value of 9sin(pi/2) ?
The value of 9sin(pi/2) is 9