# Interesting Integrals 4

Calculus Level 3

$\large P= \int_0^1 2^{x^2} \, dx ,\quad Q= \int_0^1 2^{x^3} \, dx ,\quad R= \int_1^2 2^{x^2} \, dx ,\quad S= \int_1^2 2^{x^3} \, dx$

Given the four equations above. Which of the following inequalities is true?

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