HI everyone.

Raza Here.. i m new to Math Help Forum..

actually im a student of B.CS and facing so many problems nowadays in calculus..

so i m here to discuss my problems to u all... so please kindly help me out..

i'll be very thankful to u all..

Problem:1

Q#1(a): Convert the following complex numbers into polar form and sketch.

(i) 2-3i/5-4i (ii) 1/2 - root(3)i/2

(b): Find five 5th roots of ‘-1’.

Q#2(a): Find limit

(i) lim(x->0) Sin6x/Sin8x (ii) lim(x->0) x^2/1-Cosx

(b): Show That y = x^3 + 3x + 1 satisfies y'''+xy''-2y'=0

Q#3(a): Expand f(x) = ln(x+2) in the power of (x – 3).

(sorry! i didnt find a symbol for under-root thats y i only write root (in question 1) so please realize this as a under root of 3i)

i will wait for ur answers... THANX in advance..

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Raza Elahi