number1sculler wrote:

3.42 metres.

ok then evaluate [3x-(2/3)y]^12

thats 3x minus two thirds y all raised to the power of 12.

soz that should say expand

Heyy, this is easy. All you nid is a little Binomial Theorem.

[3x-(2/3)y]^12]= (3x)^12+[12(3x)^11.(-2/3y)]+[66(3x)^10.(-2/3y)^2]+...+[66(3x)^2.(-2/3y)^10]+[12(3x).(-2/3y)^11]+(-2/3y)^12

Sry i didnt expand it all bt it will take up a damn lot of space.

Aniways, why are we off topic? Is it because we want more challenging problems. Haha!

Ok..you need calculus to solve this one.

The current

*I* in a can electric circuit at time

*T* sastifies the differential equation 4(d

*I*/d

*T*)=2-3

*I* Find

*I* in terms of

*T*, given that

*I*=2 when

*T*=0.

State what happens to the current in the circuit for large values of

*T*
Well, this is what i learn i school right nw but my teachers say we gonna face much harder stuff at the end of the year. Haha!