(-1/7 + 9) commutes to = (9 - 1/7) = 8 6/7 or 62/7.
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3, since 3*9 = 27 = 1 (mod 26)
The multiplicative inverse of a complex number is found by taking the complex conjugate of the number and dividing by the square of its magnitude. For the complex number 3-i, the complex conjugate is 3+i. The magnitude of 3-i is sqrt(3^2 + (-1)^2) = sqrt(9 + 1) = sqrt(10). Therefore, the multiplicative inverse of 3-i is (3+i) / 10.
Well, isn't that just a happy little math question! The multiplicative inverse of 4 over 9 is simply 9 over 4. You see, when you multiply these two fractions together, they equal 1, which is a beautiful balance in the world of numbers. Just remember, in math and in life, there's always an inverse waiting to bring harmony and balance.
Definition of Inverse OperationTwo operations are said to be Inverse to each other if one operation undoes the effect of the other operation.More about Inverse OperationAddition and subtraction are inverse operations of each other.Multiplication and division are inverse operations of each other.Examples of Inverse OperationThe inverse operation of "10 + 9 = 19" is "19 - 9 = 10", or vice-versa.The inverse operation of "7 × 9 = 63" is "63 ÷ 9 = 7", or vice-versa.Solved Example on Inverse OperationQ. The inverse operation for 14 × 4 = 56. A. 56 ÷ 4 = 14