If sin-15- sin4-15- sin11-15 - sin14-15-m- Find m

sinπ/15+sin4π/15 sin11π/15 sin14π/15 =sinπ/15+sin4π/15 sin(π 4π/15) sin(π π/15) =sinπ/15+sin4π/15 sin4π/15 sinπ/15 =0 ∴>m=0 #10; #1 ...

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Relation between Radian and Degree

If sinπ/15+...

Question

If $sin \frac{π}{15} + sin \frac{4 π}{15} - sin \frac{11 π}{15} - sin \frac{14 π}{15} = m$ . Find $m$

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sin \frac{π}{15} + sin \frac{4 π}{15} - sin \frac{11 π}{15} - sin \frac{14 π}{15} = 0

sin \frac{π}{15} + sin \frac{4 π}{15} - sin \frac{11 π}{15} - sin \frac{14}{15} = 0

(\frac{11}{3} \times \frac{13}{5}) - \frac{14}{15} = \frac{m}{15}

m

m - 15 + 25 - 15 - 15 = 20

m = ?

\frac{1}{\sqrt{s e c^{2} N - 1}}

\frac{m}{15}

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