(i) If tanA=56 and tanB=111, prove that A+B= π4 (ii) If tanA=mm−1 a – InterviewSolution

1.	(i) If tanA=56 and tanB=111, prove that A+B= π4 (ii) If tanA=mm−1 and tanB=m2m−1 then prove that A−B=π4
Answer» (i) If $t a n A = \frac{5}{6}$ and $t a n B = \frac{1}{11},$ prove that A+B= $\frac{π}{4}$ (ii) If $t a n A = \frac{m}{m - 1}$ and $t a n B = \frac{m}{2 m - 1}$ then prove that $A - B = \frac{π}{4}$

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