Question

What is the differentiation of :-

|-7| + 3|4|

Answer 1

It's automatically zero.

Answer 2

because |-7| + 3|4| is constant

Answer 3

But let say it is |-7x|, how can we derive that @hartnn

Answer 4

I think it's just 7x.

Answer 5

derivative of |x| is |x|/x or x/|x|

Answer 6

Oww. New learning. Thanks @hartnn . So it can be 7|x|/x, right?

Answer 7

yep correct.
the other equivalent way is to use
\(|a| = \sqrt {a^2} \)
and that would give you 7x/sqrt (x^2)
which is same thing :)

Answer 8

12
You guys are going too complex its just simple math

Answer 9

how is it 12 ?

Answer 10

|-7| is absolute value which is how far from zero which is 7

Answer 11

the rest is just 3 times 4

Answer 12

yep
|-7| + 3|4| = 7+12 =19
but he asked for the differentiation :)

Answer 13

Are there two cases for it.

Answer 14

i keep getting it wrong. LOL

Answer 15

2 but equivalent cases

Answer 16

my bad your wright its 19 i just thought it was 12 beacuse 3 x 4 =12