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She require solved papersHere:
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She require solved papersHere:
It's bcz em facing difficulties solving it so just wanted to see it!! if sm1 can help i wud really appreciate it...I dont have it. Can I ask why do u need it?
Be chillofied.. Everyone stuck at somewhere or the other. Just bring on the doubts u have.It's bcz em facing difficulties solving it so just wanted to see it!! if sm1 can help i wud really appreciate it...
3) Y = Ae^-kx^2
In part (i) why is |z| = sqrt(a^2 + b^2)^2? Shouldnt it be sqrt(a+bi)^2?.OK! Here's the solution to Complex no. question (#7).
Part (i) is easy while in Part (ii), you should remember that the given eq. can be proven if you work the other way round (from answer to question). But both ways are OK.
P.S. Our Teacher discussed this question with us in school and we proved Part (ii) in like, 40 min!
OK! Here's the solution to Complex no. question (#7).
Part (i) is easy while in Part (ii), you should remember that the given eq. can be proven if you work the other way round (from answer to question). But both ways are OK.
P.S. Our Teacher discussed this question with us in school and we proved Part (ii) in like, 40 min!
so did you get the papers? because I do have two of themIt's bcz em facing difficulties solving it so just wanted to see it!! if sm1 can help i wud really appreciate it...
In part (i) why is |z| = sqrt(a^2 + b^2)^2? Shouldnt it be sqrt(a+bi)^2?.
Firstly why are there 2 times square when removing modulus? Secondly u missed the iota as z is a complex number
thanks buddy. What abt part ii question i askedWhoa, man! To find mod of a complex no., you use this formula:
If z = a+bi
then |z| = sqrt(a^2+b^2)
because if you plot z on an Argand diagram, you can find the length of the line (from origin to z) using Pythagoras theorem as it makes a triangle. And that length is mod of z. You getting it?
And what's iota? The 'i'? Well, i just differentiates between the real and unreal part of the complex no. so that is why it isn't written during calculations (e.g. when finding arg z, you don't write i in the formula)
Hope you understand it because this my first time explaining something on xtremepapers!
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