Number 6

2 marks · Normal

State whether the following statement is true or false and justify your answer: "The reciprocal of is ."

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True. The reciprocal of is , so the reciprocal of is .

Also accept: True. The reciprocal of 4^{-3} is 4^3 because 4^{-3} = 1/4^3

Common mistakes: Saying the reciprocal is still negative index

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Marking points

B1 · 1 mark · States 'True' or shows understanding of reciprocals and indices.

B2 · 1 mark · Explanation: The reciprocal of is .

Worked solution

True. . The reciprocal of is . Generally, the reciprocal of is .