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Range of f(x) = 4^x + 2^x + 1 is...

Range of `f(x) = 4^x + 2^x + 1` is

A

`(0, oo)`

B

`(1, oo)`

C

`(2,oo)`

D

`(3, oo)`

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The correct Answer is:
B
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MOTION-FUNCTION-Exercise - 1 ( JEE Main)
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