2cot2∅ + tan∅ - cot∅ is equal to
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Answer:
=2cot2θ
Step-by-step explanation:
cotθ−tanθ=
sinθ
cosθ
−
cosθ
sinθ
=
sinθcosθ
cos
2
θ−sin
2
θ
=
sin2θ
2cos2θ
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