Let
The curl is
where 
denotes the partial derivative operator with respect to 
. Recall that
and that for any two vectors 
and 
, 
, and 
.
The cross product reduces to
When you compute the partial derivatives, you'll find that all the components reduce to 0 and
which means 
is indeed conservative and we can find 
.
Integrate both sides of
with respect to 
and
Differentiate both sides with respect to 
and
Now
and differentiating with respect to 
gives
for some constant 
. So
Answer: b is the answer
Step-by-step explanation:
2400-1200=1200
Answer:
6 times
Step-by-step explanation:
1. There was no cents left
2. If you roll one and get 50 cents you have to minus it with rolling other number than 'one' 5 times because you'll get 10 minus if you roll another number (50 divided by 10 is 5)
3. If you divid 30 (The rolls) by 5 (amount of roll you have to roll if you get one)
4. It equals 6 and 6 is a even number
5. Sorry this was too confusing
For the first one, the GCF=1. You cannot factor this any further.
For the second one, the GCF=2y(2y^2+3y+6).
