1.

The range of cot(x) is

A. [-1 1]
B. R
C. R-{x|x = 1/2(2n+1)π/2,nεZ}
D. R-{x|x = nπ,nεZ}
Answer» C. R-{x|x = 1/2(2n+1)π/2,nεZ}


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