Math, asked by amanking2916, 11 months ago

cot A +tan B÷cot B + tanB
=cot Atan B

Answers

Answered by ROUNAK108

5

Answer:

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Step-by-step explanation:

LHS: cotA + tanB / cotB + tanA

= (cotA + 1/cotB) / (cotB + 1/cotA)

= (cotAcotB + 1) / cotB / (cotAcotB + 1) / cotA

= cotA / cotB

= cotAtanB

= RHS

hence proved

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