Compute n Σ₁ tan(kx) tan((k+1)x) k=1 tan(nx) O a. + (n + 1) tan x b. tan((n+1)x) + tan x − (n + tan((n+1)x) O C. 1 tan x tan((n+1)x) 1 n+1 tan x tan((n+1)x) (n+1) tan x O d. e.

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