- Thread starter Indranil
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Here's a big hint that will take you almost all of the way: -C is notational shorthand for (-1)C.How to calculate the value of C, If -C=1?

I am doing the calculation here belowHere's a big hint that will take you almost all of the way: -C is notational shorthand for (-1)C.

or, -C=1

or, (-1)C=1

or, C=1/-1

or, C=-1/1=-1

Please check my steps if I am wrong.

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That is correct. Another way to approach it is toI am doing the calculation here below

or, -C=1

or, (-1)C=1

or, C=1/-1

or, C=-1/1=-1

Please check my steps if I am wrong.

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- Dec 30, 2014

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- 3,018

Another way to do this is to realize if two quantities are equal, then if you change their signs they will still be equal.I am doing the calculation here below

or, -C=1

or, (-1)C=1

or, C=1/-1

or, C=-1/1=-1

Please check my steps if I am wrong.

Some examples: 2 = 2 so -2 = -2. -9 = -9 so 9 = 9. .01 = .01 so -.01 = -.01. Now if -C = 1 just change both signs and get C = -1.

Now why does this work? It is equivalent to multiplying both sides by (-1) (as already pointed out)