(a) For all the values of $$\(x\)$$ where the identity is defined, prove that $$\[ \cot 2 x+\tan x \equiv \operatorname{cosec} 2 x \]$$ (3)

Answer:

Allow "single fraction" to be implied by sum/difference of fractions with same denominator or a product of fractions. No further fractions in numerator/denominator.

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