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Let T >0 be a fixed real number. Suppos...

Let `T >0` be a fixed real number. Suppose `f` is continuous function such that for all `x in R ,f(x+T)=f(x)dot` If `I=int_0^Tf(x)dx ,` then the value of `int_3^(3+3T)f(2x)dx` is (a)`3/2I` (b) `2I` (c) `3I` (d) `6I`

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