Question:`a = b^2` হলে f(2) = কত?
A `6b^2` B `4b^2` C 4a D 5a
+ AnswerA
+ Explanationf(2) = `a.2^2 + b^2.2 = 4a + 2b^2` `a = b^2` হলে f(2) =`4b^2 + 2b^2 = 6b^2`
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