Question

if tan A + Cot B =2 prove tan20A + tan20A = 2​

Answer 1

Step-by-step explanation:

Given tan A+cot A=2

Squaring on both sides we get,

tan

2

A+cot

2

A+2tanAcotA=4

tan

2

A+cot

2

A+2=4

tan

2

A+cot

2

A=2

Answer 2

Answer:

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