The reciprocal of a negative number is also a negative number because when the two numbers are multiplied the answer is 1. For example, the reciprocal of 6 is 1/6, and the product of these two numbers is 6 x (1/6)= 1.
The reciprocal of a number is also known as a multiplicative inverse, and it is defined as that number which when multiplied by the given number gives the result as unity, in other words 1. A reciprocal is determined by exchanging the position of the numerator and denominator in a given number. For example, the reciprocal of 2/3 is 3/2.
if your fraction is a/b then the reciprocal is b/a. Hence the product of the two numbers is 1
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The negative reciprocal of any gradient gives the gradient of the line perpendicular to it. If you had a line of gradient 2, the negative reciprocal would be 1/2. Just change the
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The negative reciprocal of 5 is 1/5. This is done by taking the reciprocal of
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The negative reciprocal of 1 is 1.   1 = (  1 / 1 ) To get the negative reciprocal , flip the numerator and denominator : ( 1 /  1 ) , and then multiply by  1 :
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