engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Integral Calculus Indefinite Integrals
यदि x = \(\rm \displaystyle\int_0^y \frac{d t}{\sqrt{1+9 t^2}}\) और \(\rm\frac{d^2 y}{d x^2}\) = ay है, तो a किसके बराबर है?
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