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Will there be AS content in A level bio (paper 4)?
well just be prepared.. i remember in chemistry p4 they like asking as stuff -
Chemistry Practical 26th Oct - How was it?
the +- 2/+-8 divided by the time recorded, then multiply by 100 -
Chemistry Practical 26th Oct - How was it?
yeah i got exactly the same man :) -
Chemistry Practical 26th Oct - How was it?
i got those too as well as magnesium -
Mathematics Paper 3: Post your doubts!
lol i was just asking if u speak french.. im not too good at it.. its my 2nd language in igcse -
Mathematics Paper 3: Post your doubts!
wow it takes me long cos i have to keep substituting :( -
Mathematics Paper 3: Post your doubts!
guys how long does it take u to do iterations? -
Mathematics Paper 3: Post your doubts!
wow its gonna be a killer day.. good luck to all.. :) btw where u from? cos our variants are same -
Mathematics Paper 3: Post your doubts!
no problem.. u writing on tuesday p32 and bio p42? -
Mathematics Paper 3: Post your doubts!
and for 9 u use limits 1 to 2 because u make y=0 to give x=1 and the upper limit is 2 -
Mathematics Paper 3: Post your doubts!
4 iii) let x0 =0.7 x1= 0.7394 x2= 0.7239 x3= 0.7299 x4= 0.7275... it stays at 0.73 so thats the answer 5) take thita to be A, from the identity cos2A=1 -2sin^2 a we get 4 sin^2A to be 2-2cos2A when we integrate it we get 2A -sin2A. substite with the limits we get the required answer 6iii)... -
Statistics P6 : post your doubts here!
to find the probability you have to, find the number of ways of arranging mrs brown. 3 seats and 1 person means 3P1 find the number of ways of mrs lin: there are 10 available seats, since 1 is taken by mrs brown in the front row. so 10P1 find the number of ways of seating students. there are 5... -
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Statistics P6 : post your doubts here!
1) 6p4 since there are 6 pegs ad 4 holes, order matters 2) 4!/2 since the 2 red pegs are repeated 3) you can pick 4 pegs, lets say RBGO 6C4 times. then u can arrange them 4! ways in a line so 6c4* 4! gives 360 4) you can pick 3 pegs, lets say RRBG, RBBG and RBGG 6C3 times each and then since 2... -
Bio paper 2 on 24th!!
i honestly think an a will be 42/60 which is a fair reflection of the paper -
When exactly does Crossing-Over in Meiosis occur?
prophase 1..99.9 percent sure :) -
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Mathematics Paper 3: Post your doubts!
ok some people may find it easy but i found it very very tricky, and the marking scheme was not helpful.. but now ive figured it out :P -
Mathematics Paper 3: Post your doubts!
tomorrow ill give the solution to this.. i just want u to give it a go.. this is the hardest question ive ever seen in p3 ;) -
Mathematics Paper 3: Post your doubts!
ok for 1) the equation is r= OA + t( AB) where AB is OB - OA 2) you do (1+2t, 2+2t, 2-2t) dot (1,2,2) = 0 which gives t to be -1/6. then OP is (2/3, 5/3, 7/3) 3) OP is the normal since it is perpendicular to AB then you do r.n=a.n to give u 2x+5y+7z=26.. post if u need more explaination :):)