Maths.... another one :D

[holtadit]

How would you do the last question ? Circled in purple.

[@d!_†oX!©]

Hey Ari!
could you scan ur answer till the second last part as well..or else i'll have to do the whole question :/

[omair]

duder just form an equation 4x+25/x2=25-3x
                               then  4x+25=25x2-3x3
                  the equation comes like this  3x3-25x2+4x+25





got it

[holtadit]

Hey omair thanks man !!

But your simplification of the equation was wrong. I figured it out anyways.

+rep

[haris94]

QUESTION :
can shear factor be a negative number? if so, how?

[astarmathsandphysics]

I think so as for scalings

[haris94]

need help in ques 2a) iv -- oct/nov 2009 paper 4
Thanks in advance

[astarmathsandphysics]

1 hour

[haris94]

no probs

[nid404]

need help in ques 2a) iv -- oct/nov 2009 paper 4
Thanks in advance

It's shear..

but i don;t understand how the factor is -1 cuz i got +1
Well wait for astar

[astarmathsandphysics]

scaling factor 2 in the y direction

[haris94]

ok here's a challenging question
it took me a while to solve it
pls post the answer; want to confirm my answer
Thanks

[astarmathsandphysics]

Easy. Just write the numbers the other way around like in the table then when you add up the one hundred 101's to get 10100 you are adding the same list up twice so divide by 2 to get 5050

[haris94]

yea i got that
the total of the 3rd column in the table is 2s
so i did 2s=10100

Thanks