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Answer:
(sec x - cosec x)²
Step-by-step explanation:
open the whole square formula first
then take (-2tan x and -2cot x) at one side and take -2 common
open tan x and cot x in sin x/cos x and cos x/sin x
it'll then become (-2sec x cosec x) along with sec²x + cosec²x
which is the formula of (sec x - cosec x)²
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