Prove that - tan A-tan B- B-cotA-tanB- cotA

tan A tan B/cot B cot A = tan A tan B/1/tan B 1/tan A = tan A tan B /(tan A tan B/tanB tanA) = (tan A tan B ) . tanB . tanA/(tan A tan B) = ...

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Trigonometric Identities

Prove that : ...

Question

Prove that : $\frac{t a n A - t a n B}{c o t B - c o t A} = \frac{t a n B}{c o t A}$

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\frac{c o t A + t a n B}{c o t B + t a n A} = c o t A t a n B

tan A + tan B = p

cot A + cot B = q

c o t (A + B) =

△ A B C

t a n (\frac{B + C}{2}) = c o t (\frac{A}{2})

t a n \frac{B + C}{2} = c o t \frac{A}{2}

\frac{c}{a - b} = \frac{tan \frac{A}{2} + tan \frac{B}{2}}{tan \frac{A}{2} - tan \frac{B}{2}}

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