In modulo 11 arithmetic, 6 is the multiplicative inverse of 2.
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The multiplicative inverse is 1/(-0.50) = -2
2 is the multiplicative inverse of 1/2 Therefore 2*1/2 = 1
3 and a half = 7/2 so its multiplicative inverse is 2/7.
2
it means reciprocal, the number that multiplies by the original number to get a product of 1. The multiplicative inverse is always 1/x; x=5, then the multiplicative inverse is 1/5. If x=1/2 or .5, the multiplicative inverse is 1/.5, which is also 2.