Find the value of sin2-10-sin24-10-sin26-10-sin29-10-

The correct option is A 2 Given, sin^2π10+sin^24π10+sin^26π10+sin^29π10 =sin^218^∘+sin^218^∘+sin^2108^∘+sin^2162^∘ =sin^218+sin^2(90 18)+sin ...

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Range of Trigonometric Ratios from 0 to 90 Degrees

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Question

Find the value of ${sin}^{2} \frac{π}{10} + {sin}^{2} \frac{4 π}{10} + {sin}^{2} \frac{6 π}{10} + {sin}^{2} \frac{9 π}{10}$ .

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s i n^{2} \frac{π}{10} + s i n^{2} \frac{2 π}{5} + s i n^{2} \frac{3 π}{5} + s i n^{2} \frac{9 π}{10}

{sin}^{2} \frac{π}{10} + {sin}^{2} \frac{2 π}{5} + {sin}^{2} \frac{3 π}{5} + {sin}^{2} \frac{3 π}{5} + {sin}^{2} \frac{9 π}{10} = m

m

{sin}^{2} \frac{π}{18} + {sin}^{2} \frac{π}{9} + {sin}^{2} \frac{7 π}{18} + {sin}^{2} \frac{4 π}{9} = k

k

The value of $s i n^{2} (\frac{π}{18}) + s i n^{2} (\frac{π}{9}) + s i n^{2} (\frac{7 π}{18}) + s i n^{2} (\frac{4 π}{9})$ is

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