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sinax এর n তম অভ্যরীকরণ কত?

a^{n - 1} \sin (a x + n π)

a^{n} \sin (ax + nπ)

a^{n - 1} \sin (ax + n \frac{π}{2})

a^{n} \sin (ax + n \frac{π}{2})

ANS : 4

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