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0 votes
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in Trigonometry by (51.4k points)

The positive integer value of n > 3 satisfying the equation

\(\frac 1{sin(\frac \pi n)} - \frac 1{sin(\frac {2\pi} n)} +\frac 1{sin(\frac {3\pi} n)}\) is

(a) 5

(b) 6

(c) 7

(d) 8

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1 Answer

+1 vote
by (51.1k points)

Correct option is (c) 7

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