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It does:Hey first of all thanks for replying and those notes have really helped me but sadly there is no mention of greatest value of argument there.
Complex No. max/min IzI and arg(z) - P3
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It does:Hey first of all thanks for replying and those notes have really helped me but sadly there is no mention of greatest value of argument there.
haha i'm notWa iyyakum,
Happens sometimes, dont get dishearted!
oh ok thanks,I thought u were talking about the pdf file.
Q4 P32 the second linkNext time post the link to the m.s as well!
View attachment 9589
After a long time, as t becomes very large, lets suppose t = 200
e^(t/2) = e^(200/2) = e^100 = very large value so large that adding 5 to it won't make any difference,
So (5 + e^(t/2)) will become equal to e^(t/2)
The numerator and denominator will cancel out and the answer left will be 1800.
You may verify this using a calculator!
Initial value in which question ?
If its the iteration question, take initial value as pie
View attachment 9602 Can someone please explain how to do this type of question. This is the only problem in maths for me, I could never understand how to do it even though I have tried all the past paper questions. I always get the 2nd part wrong.Please post a detailed explanation.
Thank you
Can someone please explain how to do this type of question. This is the only problem in maths for me, I could never understand how to do it even though I have tried all the past paper questions. I always get the 2nd part wrong.Please post a detailed explanation.
Thank you
hi, i have a problem in this question too, did u solve it?
thanks . i was solving it with another method and getting different signs.. this is easy .. just havnt done maths in weeks!w is having magnitude 1 and argument 2/3pi
means we can represent w by r (cos(x + sin( x)
now r is magnitude .... 1
cosx and sinx wil be cos2/3pi and sin 2/3pi so w wil be 1(cos(2/3pi) + sin(2/3pi))
u is given as 2i means the real part is zero so u can be represented by 0 + 2i
now u.w wil be ( 0 + 2i ).(cos(2/3pi) + sin(2/3pi))
solve it to get the ans
and u/w wil be ( 0 + 2i )/(cos(2/3pi) + sin(2/3pi)) any cmplex in fractional frm when is to be changed into x+yi is always to be mutiplied and divided by conjugate base.
so u/w wil be ( 0 + 2i )/(cos(2/3pi) + sin(2/3pi)) * ((cos(2/3pi) - sin(2/3pi)) )/((cos(2/3pi) - sin(2/3pi)) )
solve it to get the ans
hope u gt what i said ??
express Rcos(X-alpha) as cos(A-B)..i.e R(cosX x cos alpha+sinX x sin alpha) then multiply.......View attachment 9602 Can someone please explain how to do this type of question. This is the only problem in maths for me, I could never understand how to do it even though I have tried all the past paper questions. I always get the 2nd part wrong.Please post a detailed explanation.
Thank you
i had the same problem6 The equation of a curve is
x ln y = 2x + 1.
(i) Show that dy/dx = − y/x^2
=> I differentiated both the sides and i got : ln y +x/y (dy/dx) = 2
but don't know how to do it further.. can any1 pls help me out ??
Thanks for replying!
when you make X the subject does the answer you get have to be within the new range or the one specified in the question?
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