6.3.35Use a computer algebra system to find the exact volume of the solid. y =(sinx)^2, y = (sinx)^4

Problem 6.3.35 From James Stewart's Single Variable Calculus - Early Transcendentals 7th edition from chapter 6, applications of integration - volumes by cylindrical shells.
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Use a computer algebra system to find the exact volume of the solid obtained by rotating the region bounded by the given curves about the specified line. y = (sinx)^2, y = (sinx)^4 between 0 and pi about x = pi/2