engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Integral Calculus Indefinite Integrals
যদি \(\rm \displaystyle\int \dfrac{1}{\sqrt{9-16x^2}}dx=\alpha \sin^{-1} (\beta x)+c\) হয় তবে \(\rm \alpha + \dfrac{1}{\beta}=\)
1
1
2
\(\dfrac{7}{12}\)
3
\(\dfrac{19}{12}\)
4
\(\dfrac{9}{12}\)