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\int \cos^{- 1} x d x

এর মান কোনটি?

x \cos^{- 1} x - \sqrt{1 - x^{2}} + c

x \cos^{- 1} x + \sqrt{1 - x^{2}} + c

x [\cos^{- 1} x - \sqrt{1 - x^{2}}] + c

x [\cos^{- 1} x + \sqrt{1 - x^{2}}] + c

x \cos^{- 1} x - \sqrt{1 - x^{2}} + c

ANS : 5

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