For all ∝i(i = 1, 2, 3, ....20) lying between 0° and 90°, it is given that, sin∝₁ + sin∝₂ + sin∝₃ + ......sin∝₂₀ = 20 . What is the value of (∝₁ +∝₂ +∝₃ + ....... +∝₂₀)? please explaine this Q. sir

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