JEE Previous Year QuestionIf x=log(y+y2+1) then y=Topic: JEE PYQAnswer: C. Full step-by-step solution below.AtanhxBcothxCsinhxDcoshxCorrect answer: CSolution(c) x=log(y+y2+1)y+y2+1=ex∵sinh−1x=log(x+x2+1)sinh−1y=log(y+y2+1)sinh−1y=x⇒sinhx=yMore Inverse Trigonometric Functions PYQsIf…The sum of the infinite series…For non-negative integer n, let……If y=cos(3π+cos−12x), then (x−y)2++3y2 is eq…