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[" The value of "sum(k=1)^(100)sin(kx)co...

[" The value of "sum_(k=1)^(100)sin(kx)cos(101-k)x" is equal to "],[[" (A) "(101)/(2)sin(101x)],[" (B) "99sin(101x)],[" (C) "50sin(101x)],[" (D) "100sin(101x)]]

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