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Definition of Function

Evaluate :-If...

Question

Evaluate :-
If $f (x) = 2 x + 1$ then, $f (2 x - 3) = ?$

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Solution

$f (x) = 2 x + 1$
$f (2 x - 3) = 2 (2 x - 3) + 1$
$f (2 x - 3) = 4 x - 6 + 1$
$f (2 x - 3) = 4 x - 5$

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