(1 + tan^2A) / (1 + cot^2A) =
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Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element in the periodic table. At standard conditions hydrogen is a gas of diatomic molecules having the formula H2. It is colorless, odorless, non-toxic, and highly combustible
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Step-by-step explanation:
it can be written as
1+cot
2
A
1+tan
2
A= cosec 2sec 2 A = sin 2 A1cos 2 A1 = cos 2 Asin 2=tan 2 A
Therefore, Answer is tan 2 A
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