Q13 · 2022 · Technology-freeSimple familiar6 marks
QUESTION 13 (6 marks)
a)[4 marks]
Use partial fractions to determine .
b)[2 marks]
Use the result from Question 13a) to determine . Express your answer in simplest form.
WORKED SOLUTION
6 marksQCAA guide · typeset solution
ANSWER
a) ; b) .
Worked solution
a) , so
b) Substituting the limits gives .
correctly sets up the partial fractions
determines value of A
determines value of B
determines an expression for the indefinite integral
substitutes limits of integration into the result from 13a)
expresses a definite integral value in simplest form
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