જો α અને β બહુપદી f(x) = a(x2 - 1) - x(a2 + 1) ના શૂન્યો હોય, તો (α + 1)(β + 1) =

1
\(\rm\frac{\left(a^2−1\right)}{a}\)
2
\(\rm\frac{(a+1)}{a}\)
3
\(\rm\frac{(a+1)}{a^2}\)
4
\(\rm\frac{\left(a^2+1\right)}{a}\)

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