If the range of functions f(x)=(cos−1x3)2+πsin−1x3−(sin−1x3)2 – InterviewSolution

1.	If the range of functions f(x)=(cos−1x3)2+πsin−1x3−(sin−1x3)2+π24(x2+2x+1) is [a,b]. then the value of ba is
Answer» If the range of functions $f (x) = {({cos}^{- 1} \frac{x}{3})}^{2} + π {sin}^{- 1} \frac{x}{3} - {({sin}^{- 1} \frac{x}{3})}^{2} + \frac{π^{2}}{4} (x^{2} + 2 x + 1)$ is $[a, b]$ . then the value of $\frac{b}{a}$ is

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