Math, asked by sumit32066, 6 months ago


It tan A = 2/5 and tan B =3/7,then prove that A+B = π/4​

Answers

Answered by poorveejain2004
0

tan (A+B)

= tan A + tan B / 1 - tanAtanB

putting values

= 2/5+3/7 / 1-2/5*3/7

= 29/35 / 29/35

= 1

= tan 45 or tan π/4

Thus, A+B = π/4

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