x+h/x-h =tanA/tanB;=2x/2h=tanA+tanB/tanA-tanB how

1.	x+h/x-h =tanA/tanB;=2x/2h=tanA+tanB/tanA-tanB how
Answer» tan A +tan B/ tan A-tan BDivide numerator and denominator by tan B, we gettan A/tanB +tanB/tanB/tanA/tanB - tan B/tanBx+h/x-h+1/x+h/x-h-1x+h+x-h/x+h-x+h2x/2hhence proved\xa0

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