If A-2 tan A-tan B then A isA- 2 tan B - A B- 2 tan A-BC- -2 tan A-BD- 2 tan A-B

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Sin2A and Cos2A in Terms of tanA

If A+2 tan A=...

Question

If $c o t A + 2 t a n A = t a n B$ then $c o t A$ is

$2 t a n (A - B)$

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$2 t a n (B - A)$

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$2 t a n (A + B)$

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$- 2 t a n (A + B)$

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2 tan A + cot A = tan B

cot A + 2 tan (A - B)

2 tan A + cot A = tan B

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If tan A=2tanB+cotB, then 2tan(A-B)=

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∣ ∣ ∣ ∣ ∣ \begin{matrix} cot \frac{A}{2} & cot \frac{B}{2} & cot \frac{C}{2} tan \frac{B}{2} + tan \frac{C}{2} & tan \frac{A}{2} + tan \frac{C}{2} & tan \frac{A}{2} + tan \frac{B}{2} 1 & 1 & 1 \end{matrix} ∣ ∣ ∣ ∣ ∣ = 0

A = 2 tan B + cot B

2 tan (A - B) =

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