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Popular >

sin(arccos(-1/4))

Solution

sin (arccos (- \frac{1}{4}))

Solution

\frac{15}{4}

+1

Solution steps

sin (arccos (- \frac{1}{4}))

Rewrite using trig identities:

sin (arccos (- \frac{1}{4})) = 1 - (- \frac{1}{4})^{2}

= 1 - (- \frac{1}{4})^{2}

Simplify

= \frac{15}{4}

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Frequently Asked Questions (FAQ)

What is the value of sin(arccos(-1/4)) ?
The value of sin(arccos(-1/4)) is (sqrt(15))/4