Question

tanA=3/4 and tanB=4/3 then (A+B)=?​

Answer 1

Heya

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Tan ( A + B ) =

{Tan A + Tan B }/ ( 1 - Tan A × Tan B )

Formula

=>

Tan A + Tan B =

Tan ( A + B ) × { 1 - Tan A × Tan B }

Here Tan A = 3/4 And Tan B = 4/3

=>

(3/4) + (4/3) = Tan ( A + B ) { 1 - 1 }

=>

Tan ( A + B ) = 25/12×0

=>

Tan ( A + B ) = infinity.

=>

Tan ( A + B ) = Tan ( 90° )

becoz Tan ( 90 ) is infinity.

=>

A + B = 90°

Answer 2

Answer:

90°

Step-by-step explanation:

solve by using following formula

Tan(A+B)×{1-tanA×tanB}