If sin 8 π = m 1 − n 1 , where m , n ∈ N , find m + n .

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MathematicsTrigonometric Ratios & IdentitiesBasic Identities & T RatiosMedium3 minQB

MathematicsMediumsingle choice

If $sin \frac{π}{8} = \frac{1}{m} - \frac{1}{n}$ , where $m, n \in N$ , find $m + n$ .

Answer:

Solution:

$sin (π /8) = 1/ 4 - 1/ 8$ , so $m + n = 12$ .

Stream:JEESubject:MathematicsTopic:Trigonometric Ratios & IdentitiesSubtopic:Basic Identities & T Ratios

⏱ 3mℹ️ Source: QB

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