Lim n - n -cos-4 n -sin-4 n is equal toA- -4B- -6-6- -9D- -3

The correct option is A x →∞lim n.cos ( π/4n ) sin (π/4n ) = n →∞limn/2 sinπ/2n =π/4 ...

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Standard Limits to Remove Indeterminate Form

lim n →∞ n ·c...

Question

$lim n \to \infty n . cos (\frac{π}{4 n}) . sin (\frac{π}{4 n})$ is equal to

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