Q.1 (A) (vi) If ∫₀^a 3x² dx=8 then a = _____. A. 2 B. 0 C. 8/3 D. 1

Answer: A. 2 Answer: (a) 2 ∫₀^a 3x² dx=[x³]₀^a=a³=8 , so a=2 .

If \(\int_0^a 3x^2\,dx=8\) then a = _____.

Q.1 (A) (vi) If \(\int_0^a 3x^2\,dx=8\) then a = _____.

A. 2

B. 0

C. \(\frac{8}{3}\)

D. 1

Doubtly Asked 28 Oct 2026 Board exam · March 2026 hsc 12th Save WhatsApp Report

Best answer

Answer: A. 2

Answer: (a) 2

\(\int_0^a 3x^2\,dx=\left[x^3\right]_0^a=a^3=8\), so \(a=2\).

Doubtly AI · 28 Oct 2026 AI-generated · not yet verified Report

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