STEP I 2007 question 2 solution

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Hence:

Hence:

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Consider:

Hence:

Hence:

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Hence, as "p", and "q" are positive integers, , (or , ).

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In the aforementioned context:

Hence, for the stated (on the examination paper) equation to be true:

Hence:

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As (given), the fraction of is in lowest terms.

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Consider that :

Hence, as , , and as there can be two possible values of "t":

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