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Popular >

4sin((7pi)/4)

Solution

4 sin (\frac{7 π}{4})

Solution

- 22

+1

Solution steps

4 sin (\frac{7 π}{4})

Rewrite using trig identities:

sin (\frac{7 π}{4}) = - \frac{2}{2}

= 4 (- \frac{2}{2})

Simplify

4 (- \frac{2}{2}) : - 22

= - 22

Popular Examples

arccot(-1/(sqrt(3)))

arccot (- \frac{1}{3})

cot (\frac{17 π}{3})

arctan(sqrt(-3))

arctan (- 3)

cot (\frac{17 π}{2})

sin (\frac{π}{2} - \frac{π}{3})

Frequently Asked Questions (FAQ)

What is the value of 4sin((7pi)/4) ?
The value of 4sin((7pi)/4) is -2sqrt(2)