Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

How do you find cot(x) = -2 in radians?

1 Answer

Aug 18, 2015

$cot(x)= -2$
$rArr$ $color(white)("XXXX")$ $x = 0.457658 radians$

Explanation:

If $cot(x) = -2$
then
$color(white)("XXXX")$ in standard position we are looking at a
$color(white)("XXXX")$ triangle whose adjacent to opposite side ratio is ( $-2:1$ )

Unfortunately, this is not one of the standard angle ratios.

The only way to solve this is to use a calculator (or similar technology), or look it up in a table of trig values, or use something like the Taylor expansion (if you have nothing better to do with your evenings).

Related questions

See all questions in Solving Trigonometric Equations

Impact of this question

1649 views around the world

You can reuse this answer
Creative Commons License