Zero Minus Zero

Calculus Level 1

What is the value of 0 − 0 0-0 ?

0 1 a + 1 b − a c + b c a b c 1 a − 1 b \frac { \cfrac {1}{a} +\cfrac {1}{b} -\cfrac {ac+bc}{abc} }{ \cfrac {1}{a} -\cfrac{1}{b}} The derivative of a constant All of the other choices are correct

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Mikhaella Layos by Mikhaella Layos , 21, Philippines

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3 solutions

Zakaria Sellami
Jun 7, 2014

The derivative of a constant is 0.
0-0=0.
Then two answers are correct, no need to check the third. The answer is "All of the other choices are correct".

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4th option is true only is (b-a) not equal to zero. Also c should not be equal to zero

samay parikh - 7 years ago

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It's a derivative formula that aromaticly assumes that b-a does not equal 0 and that c does not equal zero. Those are the requirements for that rule so it is safe to assume this is so.

Gavin Havis - 6 years, 1 month ago

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What formula is this?

Alex Li - 5 years, 3 months ago

I think the A one is not correct, since the question doesn't restrict to any values, if you say that a, b or c is not zero, maybe all the answer is right

Figel Ilham - 6 years, 11 months ago

Sir u didn't mention that c is not equal to 0

Mani Chand - 6 years, 11 months ago
Aareyan Manzoor
Nov 16, 2014

a) 1/a + 1/b - (ac+bc)/acb (a+b)/ab - [(c)(a+b)/ab(c) (a+b)/ab - (a+b)/ab =0

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But this only equals 0 when the fraction is not 0/0.

Exponent Bot - 2 years, 8 months ago
Benjamin Wong
Jun 3, 2014

0-0=0=(d/dx)(c)=bc+ac-ac-bc/abc/whatever

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