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Popular >

cot(-pi/8)

Solution

cot (- \frac{π}{8})

Solution

- 2 - 1

+1

Solution steps

cot (- \frac{π}{8})

Use the following property:

cot (- x) = - cot (x)

cot (- \frac{π}{8}) = - cot (\frac{π}{8})

= - cot (\frac{π}{8})

Rewrite using trig identities:

cot (\frac{π}{8}) = 2 + 1

= - (2 + 1)

Simplify

= - 2 - 1

Popular Examples

tan(arctan(4/3))

tan (arctan (\frac{4}{3}))

(300)/(cos(30))

\frac{300}{cos ( 3 0 ^{\circ} )}

csc (- 48 0^{\circ})

sin (π - 0)

arctan (\frac{11}{7})

Frequently Asked Questions (FAQ)

What is the value of cot(-pi/8) ?
The value of cot(-pi/8) is -sqrt(2)-1