JEE practice!

Calculus Level 2

For natural number, denote Pn=r=1n6r2+r16r2+7r5P_n = \displaystyle\prod_{r=1}^n \dfrac{6r^2+r-1}{6r^2+7r-5}

What is the value of limn910(n+1)Pn \displaystyle \lim_{n \to \infty} \frac {9}{10} (n+1) P_n ?

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