Math  /  Calculus

QuestionThe answer above is NOT correct.
Find the volume of the solid whose base is the region in the first quadrant bounded by y=x6,y=1y=x^{6}, y=1, and the yy-axis and whose cross-sections perpendicular to the xx axis are squares.

Studdy Solution
Evaluate the integral:
First, expand the integrand:
(1x6)2=12x6+x12 (1 - x^6)^2 = 1 - 2x^6 + x^{12}
Now, integrate term by term:
V=01(12x6+x12)dx V = \int_{0}^{1} (1 - 2x^6 + x^{12}) \, dx
=[x27x7+113x13]01 = \left[ x - \frac{2}{7}x^7 + \frac{1}{13}x^{13} \right]_{0}^{1}
Evaluate the definite integral:
V=(127×1+113×1)(00+0) V = \left( 1 - \frac{2}{7} \times 1 + \frac{1}{13} \times 1 \right) - \left( 0 - 0 + 0 \right)
=127+113 = 1 - \frac{2}{7} + \frac{1}{13}
Combine the fractions:
=91912691+791 = \frac{91}{91} - \frac{26}{91} + \frac{7}{91}
=9126+791 = \frac{91 - 26 + 7}{91}
=7291 = \frac{72}{91}
The volume of the solid is:
7291 \boxed{\frac{72}{91}}

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