Q.
The range of fx=sinx+cosx, where [.] denotes the greatest integer function, is
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a
{0}
b
{0,1)
c
{1}
d
None of these
answer is C.
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Detailed Solution
y=sinx+cosxor y2=1+sin2xor 1≤y2≤2or y∈1,2or fx=1∀x∈R
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