Qualification > Math
Additional Math Help HERE ONLY...!
ramezamgad:
lil^$tar
what is the relative velocity of two particles A and B moving
a) towards each other A with velocity 10 and B with velocity 15????
b) in the same direction A with velocity 10 and B with velocity 15????
c) in the same direction A with velocity 15 and B with velocity 15????
vanibharutham
what is the domain of the first eq.?
vanibharutham:
x greater than or equal to 0...
sorry the symbol dint come up on there
ramezamgad:
well
y=ln(4x-1)
u have to find what value of x makes y=0
ln1=0
so 4x-1=1
4x=2
x=1/2
u made 4x-1=0 which is a common mistake
vanibharutham:
oh... silly me!
right, and then for the domain x > 1/2
you'll have to find the range, which is y > 0
THANKS SO MUCH...
i always make that mistake with domain and range when it comes to e^x and ln(x)
ramezamgad:
an easy method to remember is that the domain of f(x) is the range of f-1
and the range of f(x) is the domain of f-1
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version