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The line x = 3 cuts a cap from the parabola y² = 4x. Find the area of that cap
A6√3 sq units
B8√3 sq units
C16√3 sq units
D4√3 sq units
Answer & Solution
Correct answer: B. 8√3 sq units
Twice the integral of 2√x from 0 to 3 gives 2 x 2 x (2/3) x 3√3 = 8√3.
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