Q.
Range of the function f defined by f(x)=1sin{x} (where [.] and {.} respectively denote the greatest integer and the fractional part functions) is
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a
Z, the set of integers
b
N, the set of natural numbers
c
W, the set of whole numbers
d
{2, 3, 4, ...}
answer is B.
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Detailed Solution
∵{x} ∈ [0, 1)∴sin {x} ∈ [0, sin 1) but f (x) is defined if sin {x} ≠ 0∴1sin{x}∈1sin1,∞.∴1sin{x}∈{1,2,3…...}.
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