Advertisements
Advertisements
प्रश्न
Multiple choice question :
f(x) = (x + 1)3 – (x – 1)3 represent a function which is
पर्याय
linear
cubic
reciprocal
quadratic
MCQ
Advertisements
उत्तर
quadratic
Explanation;
f(x) = (x + 1)3 – (x – 1)3
= x3 + 3x2 + 3x + 1 – [x3 – 3x2 + 3x – 1]
= x3 + 3x2 + 3x + 1 – x3 + 3x2 – 3x + 1
= 6x2 + 2
It is a quadratic function.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
