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R u speakin of O level ig?yes.
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R u speakin of O level ig?yes.
i m talking about gce, dont know about igcse though.R u speakin of O level ig?
do you have D4 book?Don't tell me :O
Can you explain it pleaseeeee
open pg 74 of its addendum, its all written there.yess
help with these 3 questions plz.........View attachment 41081
View attachment 41082 can't we cancel this down? what are the rules for cancellation?.............
View attachment 41085
add pi to the last step.......
and now, the radius should be 9, as in the ms. can u show me pls how we get it?......
but the first ans is 150..........1) 1200/(4050 * 100 * 100 * 100)
2) You can't because they're being subtracted.
3) 243 pi = 2*pi*r^2 + pi*r^2
243 pi = r^2(2pi + pi)
243 pi/ 3 pi = r^2
81 = r^2
9 = r
for second ans, 2t and t cant be reduced?1) 1200/(4050 * 100 * 100 * 100)
2) You can't because they're being subtracted.
3) 243 pi = 2*pi*r^2 + pi*r^2
243 pi = r^2(2pi + pi)
243 pi/ 3 pi = r^2
81 = r^2
9 = r
in third one, you divided the 4*pi*r^2 by 2 right?1) 1200/(4050 * 100 * 100 * 100)
2) You can't because they're being subtracted.
3) 243 pi = 2*pi*r^2 + pi*r^2
243 pi = r^2(2pi + pi)
243 pi/ 3 pi = r^2
81 = r^2
9 = r
can u show the steps for the cube root thingy....? cant get itMy bad, you have to take cube root of the answer (similar figures). And you can only cancel if it is 2t * 5/t* 1.
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