alleryStart learning →The curve y = −x² lies below the X-axis; for 1 ≤ x ≤ 4 the area it bounds is
A15
B21
C63
D27
Answer & Solution
Correct answer: B. 21
The curve lies below the axis, so area = the modulus of the integral of −x² = (64 − 1)/3 = 21.
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