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Pure 1 course · All short practice · Notes & examples

Maths4U Original · 9709 Pure 1

Power integrals, constants and limits

Check a short answer, use a hint, then study the reasoning. These checks assess the final answer; use the exam-style problems to practise written explanations.

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Recall · M4U-P1-QP-INTEGRATION-POWER-INTEGRALS-01

reverse power rule

Maths4U Original · Short practice

An antiderivative of \(6x^2\) is \(ax^3+C\). Find \(a\).

Enter one number or fraction. Round decimals to at least six decimal places when needed.

Method · M4U-P1-QP-INTEGRATION-POWER-INTEGRALS-02

linear inner factor

Maths4U Original · Short practice

An antiderivative of \((2x+1)^3\) is \(a(2x+1)^4+C\). Find \(a\).

Enter one number or fraction. Round decimals to at least six decimal places when needed.

Apply · M4U-P1-QP-INTEGRATION-POWER-INTEGRALS-03

improper endpoint

Maths4U Original · Short practice

Find the improper integral \(\int_0^1 x^{-1/2}\,dx\).

Enter one number or fraction. Round decimals to at least six decimal places when needed.

Check understanding · M4U-P1-QP-INTEGRATION-POWER-INTEGRALS-04

power exception

Maths4U Original · Short practice

For which power does \(\int x^n\,dx=x^{n+1}/(n+1)+C\) fail?

Choose one answer.

Your answer

Syllabus follow-up · M4U-P1-QP-INTEGRATION-POWER-INTEGRALS-05

negative power with linear inner function

Maths4U Original · Short practice

For \(x>-1/3\), an antiderivative of \((3x+1)^{-2}\) is \(a(3x+1)^{-1}+C\). Find \(a\).

Enter one number or fraction. Round decimals to at least six decimal places when needed.

Fresh review variant · M4U-P1-QP-VAR-INTEGRATION-POWER-INTEGRALS-01

reverse power rule

Maths4U Original · Short practice

An antiderivative of \(9x^2\) is \(ax^3+C\). Find a.

Enter one number or fraction. Round decimals to at least six decimal places when needed.

Fresh review variant · M4U-P1-QP-VAR-INTEGRATION-POWER-INTEGRALS-02

linear inner factor

Maths4U Original · Short practice

An antiderivative of \((3x+2)^3\) is \(a(3x+2)^4+C\). Find a.

Enter one number or fraction. Round decimals to at least six decimal places when needed.

Fresh review variant · M4U-P1-QP-VAR-INTEGRATION-POWER-INTEGRALS-03

improper endpoint

Maths4U Original · Short practice

Evaluate the improper integral \(\int_0^1x^{-2/3}\,dx\).

Enter one number or fraction. Round decimals to at least six decimal places when needed.

Fresh review variant · M4U-P1-QP-VAR-INTEGRATION-POWER-INTEGRALS-04

power exception

Maths4U Original · Short practice

For which exponent n is the ordinary power-integral formula for \((7x-1)^n\) invalid because n+1=0?

Enter one number or fraction. Round decimals to at least six decimal places when needed.

Fresh review variant · M4U-P1-QP-VAR-INTEGRATION-POWER-INTEGRALS-05

negative power with linear inner function

Maths4U Original · Short practice

For x greater than -2/5, an antiderivative of \((5x+2)^{-2}\) is \(a(5x+2)^{-1}+C\). Find a.

Enter one number or fraction. Round decimals to at least six decimal places when needed.

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