AM-2529

Proving identities

A Math · Secondary 4 · Medium · Proving identities

Given that

\csc 2x+\cot 2x=\cot x

, solve

\csc 2x+\cot 2x=2

for

0^\circ<x<180^\circ

.

$26.6^\circ$ (to 1 d.p.)
$63.4^\circ$ (to 1 d.p.)
$116.6^\circ$ (to 1 d.p.)
$153.4^\circ$ (to 1 d.p.)

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