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How many times must a coin be tossed until the probablility of getting 2 or more heads exceeds 0.99? cheers

Hey anyone... INT (e^x cosx) dx thanks oh and... a subsitution one use u = t - t^-1 to solve INT ( ( 1+t^2) / (1+ t^4) ) cheers

Prove, by M.I that if n is a whole number then, n^3 + 3n^2 +2n is divisible by 6 Prove this same result without M.I by first factorising. 2. A wire of length 100cm is cut into 2 pieces of length x and y. THe peice of length x is bent into the shape of a square and the y peice into...

root((k+1)/2) - root((k-1)/2) = root (k - root(k^2-1))

determine sec^-1 (2) hehe i dunno... also show that 2tan^-1(2) = pi-cos^-1(3/5)

A picture 2 metres high is hung on a wall with its bottom edge 6 metres above the eye of the viewer. How far from the wall should the viewer stand for the picture to subtend the largest possible verticle angle with her eye. 2. Show that cosecx restricted to 0 < x < = pi/2 has an inverse...

Hey there, its been awhile since i've done my maths and now i'm doing actuary!! :( so i am rusty... and am wondering (from u genious's) how do complete these so called simple calculus questions... 1. Deduce that a+b/2 >= root(ab) for all non0negative real numbers, a,b. When does the...

Hey anyone doing the above combination? It would be great to get to know some of u. Reply if u'd want to meet up O week so we can introduce ourselves... cuz we'd be doing all our classes together! Pete

Offering tutoring for Maths in the greater western sydney area (penrith etc..) acheived 96 in 2005 hsc - and have previous tutoring experience (tutored 2 students during hsc year) $15-20 an hour - ideally at Penrith library, afternoons on weekdays... thanks

Is 0 an even number? Yes. An even number leaves no remainder when divided by 2. So, 0/2 = 0 and has no remainder. Also, an integer 'n' is called "even" if there exists an integer 'm' such that n=2m, and n is called "odd" if n+1 is even. Thus, 0 is even by this criterion as well. Kool huh.

when do offers come out for med 2006??? just wondering

am i the only one who cannot do this... i mean, i've learnt all my texts, know my quotes... what more can i do... and all the time i hear people studying 8 hour days, i think, for a saturday, i've done enough... meh, just my little spaz

I just wanted to wish everyone the best. Don't stress too much, its only exams, and think of the positives - we'll be free soon.

Eight people are to be divided into 2 groups. What is the probability that there wil be 4 in each group?

What seems like the most likely text type they'll use... because my story would only go well for general story, recount, journal... not letter, conversation etc...

I thought this first one would be easy 8 pink beads and 8 white beads make up a necklace. how many ways can the necklace be made if; i) there are no restrictions (2 sig. fig.) i thought 16! -> but thats the wrong solution?? ii) pink and white alternate i thought 8!.8! x2 meh...

is my school going to pull my UAI down, i bloody hope not, i worked too hard to not get over 90 thoughts?

I've done this, jst thought i'd let you's have a crack for .... fun By considering (1-x)^n (1 +1/x)^n express, (n 2)(n 0) - (n 3) (n 1) +...+ (-1)^n (n n) (n n-2) where (n n) = nCk in simplest form

Is it a) nucleic acid and protein or; b) amino acids and protein..

This doesn't include the option topics, sorry. Also these are basic summaries - good for answers in the HSC: Walter Sutton Sutton studied grasshopper cells and came to the conclusion that each chromosome is unique and that they halve during meiosis. Each also keeps its character throughout...