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Question

Write the multiplicative inverse of each of the following rational numbers:
7; −11; 25; −715

A
17;111;52;157
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B
17;111;52;157
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C
17;111;52;157
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D
17;111;52;157
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Solution

The correct option is B 17;111;52;157
Multiplicative inverse of 7 is 17 i.e. 71=17
Multiplicative inverse of 11 is 111 i.e. (11)1=111
Multiplicative inverse of 25 is 52 i.e. (25)1=52
Multiplicative inverse of 715 is 157 i.e (715)1=157

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