If the equation sin−1(x2+x+1)+cos−1(ax+1)=π2 has exactly two solu – InterviewSolution

1.	If the equation sin−1(x2+x+1)+cos−1(ax+1)=π2 has exactly two solutions, then a cannot have the integral value/s
Answer» If the equation $s i n^{- 1} (x^{2} + x + 1) + c o s^{- 1} (a x + 1) = \frac{π}{2}$ has exactly two solutions, then a cannot have the integral value/s

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