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यदि Lim(x to 0)(1-sqrt(cos2x).root(3)(co...

यदि `Lim_(x to 0)(1-sqrt(cos2x).root(3)(cos3x).root(4)(cos4x).....root(n)(cosnx))/(x^(2))` का मान `10` हैं, तो n का मान हैं

A

`4`

B

`5`

C

`6`

D

`7`

लिखित उत्तर

Verified by Experts

The correct Answer is:
C
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