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If $\int \frac{2x+5}{\sqrt{7-6x-x^{2}}}dx=A\sqrt{7-6x-x^{2}}+B\sin ^{-1}\left ( \frac{x+3}{4} \right )+C$

(where C is a constant of integration), then the ordered pair (A, B) is equal to :

Option 1)
(2, 1)

Option 2)
(−2, −1)

Option 3)
(−2, 1)

Option 4)
(2, −1)

Answers (1)

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