How was the expansion question done , when expanded I got x^10 to be like -18144 !
You just had to think in your head of what coefficiants with there particular power would multiply (or addition of powers together) to get x^10 so you'd have x^5 and X^5, x^6 and x^4 and so on
You just had to think in your head of what coefficiants with there particular power would multiply (or addition of powers together) to get x^10 so you'd have x^5 and X^5, x^6 and x^4 and so on
I think I multiplied them the x^2 and x^5 coefficients . Should I have added. My indices rules are shaky
You just had to think in your head of what coefficiants with there particular power would multiply (or addition of powers together) to get x^10 so you'd have x^5 and X^5, x^6 and x^4 and so on
**** i did 5 and 2... i've messed up ganna drop maths
**** i did 5 and 2... i've messed up ganna drop maths
Quite a lot of people find the paper challenging so expect lower grade boundaries than normal, dont worry, just try to ace your last module your doing in maths!
Quite a lot of people find the paper challenging so expect lower grade boundaries than normal, dont worry, just try to ace your last module your doing in maths!
If you tried to multiply coefficients together and used the right numbers for both the binomial expansions, you'll get at least 2 method marks out of 5 but all depends on how harsh the mark scheme is
When you multiply numbers, you add the power, (X^2) x (X^5) = x^7
If you multiplied the powers, that will explain you big number Don't worry about it though
on that question, i expanded it all out but i did it the n(n-1) method, and i forgot to multiply out all my numbers by 2^,7 instead just 2, so i got a stupiud answer could i get any marks at all?
on that question, i expanded it all out but i did it the n(n-1) method, and i forgot to multiply out all my numbers by 2^,7 instead just 2, so i got a stupiud answer could i get any marks at all?
Really not sure because if don't know what your working is like and it all depends on the examiner and if the mark scheme is kind or not
they;ll accept multiple ways of finding the answer but i think the marker only looks at the other ways if you had the right answer at the end
i freaking love you !!!! thanks, just what i needed to hear (or read xD)
so its definatly stil possible to get a B overall , provided i get a solid A in S1 ?
Hahah and yes, you need 210/300 ums to get a B so FOR EXAMPLE if you got 65 in C1 which is a C and 55 in C2 which is a D, they add up to 120 ums and then you need 90 in S1 to get you to 210 UMS which is a B
Hahah and yes, you need 210/300 ums to get a B so FOR EXAMPLE if you got 65 in C1 which is a C and 55 in C2 which is a D, they add up to 120 ums and then you need 90 in S1 to get you to 210 UMS which is a B
THANKS SOO MUCH !!!!
you my friend are a star, may you do well in all your upcoming exams, and good luck !!!!