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I think you gave me the answer key rather than the actual questions themselves.
Oops sorry !
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w09_qp_41.pdf
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I think you gave me the answer key rather than the actual questions themselves.
the first part and please can you explain to me how to deal with maximum and minimum points when we have squared trig graphs such as cos^2 and cos^2 and tan^2 :S9(a) of part (i) or (ii) ?
@bamtech For Q#4, i've resolved the 5N force in the direction of the 40cm string. The force will hence be 5/cos A if A is the angle formed b/w the 5N force and its component. Applying sine rule to the triangle and using the given lengths, we first find the angle formed b/w PS and AS which is 36.9. Then considering the right-angled triangle formed, you just subtract 90+36.9 out of 180 to find the angle between PS and its vertical. The angle is equal to A(as its vertically opp.) and when put into 5/cos A gives you the tension in the string PS.
View attachment 16174
seventh term=a+6dHelp!!!
Find the sum of the A.P. -7-3+1+.... From the seventh to the thirtieth term inclusive.
p3?can anyone differentiate ths xy(x+y) plzz???
The sum shud b 1512 :/seventh term=a+6d
=-7+6(4)
=17
13th term=a+12d
=-7+12(4)
=41
Number tems bw 7 &13=6
sum of Ap=6/2(41+17)
=174
Hope iam right not 100% sure
Your working is right, but the Number of terms between 7 & 13 should be 7, not 6. If you use that the sum = 203 which i think is correctseventh term=a+6d
=-7+6(4)
=17
13th term=a+12d
=-7+12(4)
=41
Number tems bw 7 &13=6
sum of Ap=6/2(41+17)
=174
Hope iam right not 100% sure
Are you sure, i doubt it. Like even if you do it without using a formula (getting all the terms up to 13 and then adding from the 7th to the 13th) you won't get that answer :/The sum shud b 1512 :/
sorry my mistake i dont get how the sum be so big if u do it widout formula it doesnt come that big...Your working is right, but the Number of terms between 7 & 13 should be 7, not 6. If you use that the sum = 203 which i think is correct
Are you sure, i doubt it. Like even if you do it without using a formula (getting all the terms up to 13 and then adding from the 7th to the 13th) you won't get that answer :/
haha no need to say sorry! but i agree no way the sum is thaaaat big!sorry my mistake i dont get how the sum be so big if u do it widout formula it doesnt come that big...
whitecorp can you or someone else please explain me the M/J 2012 Paper 11 Q. no 7 b) i). Sorry no links to the papers because they are not yet uploaded in the Xtremepapers.
AcosBx+ccan sme1 help me with the cosine curves in as.like i have problms in this equation 3-4cosx.
I remember doing this question, and getting it wrong lol. Convergent means like the GP is going to a number but it never actually gets to that number, like you know when r of the GP is less than 1 and you have to find the sum to infinity, thats the number that it approaches but it will never get to that number! So basically you will say ((Second Term of GP)/(First Term of GP)) < 1 . Then you solve that equation that you get...
how we solve tan^2???can usolve itI remember doing this question, and getting it wrong lol. Convergent means like the GP is going to a number but it never actually gets to that number, like you know when r of the GP is less than 1 and you have to find the sum to infinity, thats the number that it approaches but it will never get to that number! So basically you will say ((Second Term of GP)/(First Term of GP)) < 1 . Then you solve that equation that you get...
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