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http://img100.imageshack.us/img100/9016/linalggp1.jpg [Broken]

for (a): does that mean i must compute l0(t), l1(t) and l2(t), and i wasn't sure how to do this with the lagrange polynomial formula given, so i found one online and did it, i'm not sure if this is correct, but my l0(t) looks like this:

= (t-a1)(t-a2)/(ao-a1)(ao-a2)

= (t-2)(t-3)/(1-2)(1-3)

=1/2(t-2)(t-3)

for (b) how do i go about proving this?

and also (c) what does it mean to deduce, i have looked up the definition but i still don't understand.

for (a): does that mean i must compute l0(t), l1(t) and l2(t), and i wasn't sure how to do this with the lagrange polynomial formula given, so i found one online and did it, i'm not sure if this is correct, but my l0(t) looks like this:

= (t-a1)(t-a2)/(ao-a1)(ao-a2)

= (t-2)(t-3)/(1-2)(1-3)

=1/2(t-2)(t-3)

for (b) how do i go about proving this?

and also (c) what does it mean to deduce, i have looked up the definition but i still don't understand.

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