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Mathematical Methods — Question 1

QCAA 2025, Paper 1 · 1 mark

Q1 · 2025 · Technology-freeSimple familiar1 mark

QUESTION 1

Determine the value of

\displaystyle\int_1^2 3x^2\,dx

.

(A)

9

(B)

7

(C)

6

(D)

5

ABCD

Question linkOriginal paper

WORKED SOLUTION

Answer B

1 mark

ANSWER

B —

7

Worked solution

\int_1^2 3x^2\,dx=[x^3]_1^2=8-1=7

, so option B.

Selects option B.

[1 mark]

Worked explanation by QCE Vault; correct option verified against the QCAA answer key.

View the full QCAA marking guide

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