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How do you solve the equation $3cotx+1=2+4cotx$ for $-180^circ<x<360^circ$ ?

1 Answer

Apr 26, 2018

$x=-45^circ,135^circ,315^circ$

Explanation:

After rearranging we get:
$cotx=-1$

$tanx=-1$

$x=tan^-1(-1)=-45,(180-45),(360-45)$

$x=-45^circ,135^circ,315^circ$

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