Question

If tan a=(5)/(6) tanb=(1)/(11) prove that a+b=(pi)/(4)

Answer 1

Step-by-step explanation:

Tan(a+b)=tana+tann/1-tana×tanb

tan(a+b)=5/6+1/11/(1-5/6×1/11)

tan(a+b)=61/66/(61/66)

tan(a+b)=1

a+b=tan(1)

a+b=45°

a+b=π/4

is your answer

Answer 2

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