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Popular >

cos(arcsin(-2/7))

Solution

cos (arcsin (- \frac{2}{7}))

Solution

\frac{3 5}{7}

+1

Solution steps

cos (arcsin (- \frac{2}{7}))

Rewrite using trig identities:

cos (arcsin (- \frac{2}{7})) = 1 - (- \frac{2}{7})^{2}

= 1 - (- \frac{2}{7})^{2}

Simplify

= \frac{3 5}{7}

Popular Examples

2 cot (\frac{π}{5})

arccos (\frac{6}{18})

arcsin (\frac{7}{13})

\frac{6}{sin ( 5 5 ^{\circ} )}

tan(arccos((-12)/(13)))

tan (arccos (\frac{- 12}{13}))

Frequently Asked Questions (FAQ)

What is the value of cos(arcsin(-2/7)) ?
The value of cos(arcsin(-2/7)) is (3sqrt(5))/7