Question 13

Mathematics Definite Integrals Medium

If \(I_{1}=\int_{0}^{1} 2^{x^{2}} d x, I_{2}=\int_{0}^{1} 2^{x^{3}} d x, I_{3}=\int_{1}^{2} 2^{x^{2}} d x\) and \(I_{4}=\int_{1}^{2} 2^{x^{3}} d x\), then

(A) \(I_{1}=I_{2}\)
(B) \(I_{2}>I_{1}\)
(C) \(\mathrm{I}_{3}>\mathrm{I}_{4}\)
(D) \(\mathrm{I}_{4}>\mathrm{I}_{3}\)
View Dynamic Solution & Explanation
Correct Solution: Option D

Step-by-step Solution:

When \(0 < x < 1,2^{x^{3}} < 2^{x^{2}}\), hence \(\mathrm{I}_{2} < \mathrm{I}_{1}\). Again when \(1 < x < 2,2^{x^{3}}>2^{x^{2}}\), thus \(\mathrm{I}_{4}>\mathrm{I}_{3}\). \[\] Choice (D)\[\]