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Popular >

sin(-2/5)

Solution

sin (- \frac{2}{5})

Solution

- sin (\frac{2}{5})

+1

Decimal Notation

- 0.38941 \dots

Solution steps

sin (- \frac{2}{5})

Use the following property:

sin (- x) = - sin (x)

sin (- \frac{2}{5}) = - sin (\frac{2}{5})

= - sin (\frac{2}{5})

Popular Examples

0 sin (0) + cos (0)

sqrt(2)(cos((7pi)/4)+isin((7pi)/4))

2 (cos (\frac{7 π}{4}) + i sin (\frac{7 π}{4}))

- 2 tan (6 0^{\circ})

cos^2((2pi)/5)-sin^2((2pi)/5)

cos^{2} (\frac{2 π}{5}) - sin^{2} (\frac{2 π}{5})

cos((2021pi)/4)

cos (\frac{2021 π}{4})

Frequently Asked Questions (FAQ)

What is the value of sin(-2/5) ?
The value of sin(-2/5) is -sin(2/5)