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Aoi
Questions and answers by visitors named
Aoi
Questions (11)
Hello, this is a question which i don't know how to do.
Find the value of k for which a-3b is a factor of a^4-7a^2b^2 + kb^4
2 answers
598 views
ok, this might be a bit torturous, but if anyone is patient enough and help me with my working, i'd REALLY APPRECIATE IT!!!!
Ques
4 answers
511 views
I'm really sorry, i'm preparing for O levels, so i have a lot of maths questions to ask... please excuse me...
Question: Find the
1 answer
389 views
The cubic polynomial f(x) is such that the coefficient of x^3 is -1. and the roots of the equation f(x) = 0 are 1, 2 and k.
5 answers
3,202 views
I read on an assessment book that
a^3-b^3 = (a-b)[(a-b)^2-ab] Can someone tell me how is a^3-b^3 converted into
1 answer
307 views
(a^4 - 7a^2b^2 + kb^4) ÷ (a-3b)
I'm not sure how to divide this by long division or otherwise...
3 answers
446 views
Please help! These 2 questions are very similar, and i tried to do completing square method, but i cant get the correct answer!
2 answers
623 views
given that y=Ae^kx, where A and k are constants, find an expression for dy/dx. Hence find the value of k and of A for which
3 answers
935 views
Differentiate ln [x+√(x^2+1)] with respect to x
hence evaluate limit 0 to 1 ∫ 1/√(x^2+1) dx
1 answer
893 views
This is the entire question:
A curve has the equation y=(x+2)√(x-1). i)Show that dy/dx = kx/√(x-1) and find k ii)Hence,
2 answers
959 views
Our school's girls volleyball team has 14 players, including a set of 3 triplets: Missy, Lauren, and Liz. In how many ways can
7 answers
3,195 views
Answers (3)
There's a bit of calculation mistakes there, but thanks, i know how to do it now!!!! XD
For the previous part, this was how i got the answer: f(x) = (x-1)(x-k)(x-k^2) = Q(x)(2-x)+7 Let x=2, so (2-k)(2-k^2)=7, and i get the answer, But there is another part to this question which i don't understand... please help:D it says: Hence, find a value
ok... i know how to do this question already! :D
