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Popular >

tan(arccos(-4/5))

Solution

tan (arccos (- \frac{4}{5}))

Solution

- \frac{3}{4}

+1

Solution steps

tan (arccos (- \frac{4}{5}))

Rewrite using trig identities:

tan (arccos (- \frac{4}{5})) = \frac{1 - ( - \frac{4}{5} ) ^{2}}{( - \frac{4}{5} )}

= \frac{1 - ( - \frac{4}{5} ) ^{2}}{- \frac{4}{5}}

Simplify

= - \frac{3}{4}

Popular Examples

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arcsin(sin(pi/3))

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Frequently Asked Questions (FAQ)

What is the value of tan(arccos(-4/5)) ?
The value of tan(arccos(-4/5)) is -3/4