JEE MAIN - Mathematics Bengali (2022 - 25th June Evening Shift - No. 17)

$$b > 3$$ এবং $$12\mathop \smallint \limits_3^b {1 \over {({x^2} - 1)({x^2} - 4)}}dx = {\log _e}\left( {{{49} \over {40}}} \right)$$, হলে $$b$$ -এর মান হবে _______ ।
Answer
6

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