Write the multiplicative inverse of each of the following rational numbers: 7; −11; 25; −715
A
−17;1−11;52;15−7
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B
17;1−11;52;15−7
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C
17;111;52;15−7
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D
17;1−11;−52;15−7
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Solution
The correct option is B17;1−11;52;15−7 Multiplicative inverse of 7 is 17 i.e. 7−1=17 Multiplicative inverse of −11 is 1−11 i.e. (−11)−1=1−11 Multiplicative inverse of 25 is 52 i.e. (25)−1=52 Multiplicative inverse of −715 is 15−7 i.e (−715)−1=15−7