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This is question 50 on page 209 from New Senior Maths : 3Unit Course. 50. By considering the coefficient of x^r in the geometric progression. 1 + (1 + x) + (1 + x)^2 + .... + (1 + x)^n Prove that nCr + (n-1)Cr + (n-2)Cr + ... + rCr = (n+1)C(r+1) The C acutally represent...

Hey, I am asking on behalf of a friend. He wants to become a maths teacher however he doesn't do 4Unit at school. He was wondering would any university accept him into the maths teaching course? He is doing fairly well in 3Unit at the moment. Thanks ~Yell0w

A ball is dropped from a looks fired out 320m high. At the same time, a stone is fired vertically upwards from the valley floor with a speed of V m/s. (Taking g = 10m/s) i. Show that if the ball and the stone collided in the air, then they do so when V >= 40m/s ii. Find, in terms of V, the...

Heyy , BOS'ers I thought this would be a good time to start planning my future so I thought I should get suggestions. Lets say I got 80 ATAR ( Aiming low so I wont shoot myself if it dont get over 90). My first preference is mechatronics at any university that offer this course. Is there a...

Hey, I have been working through the 3Unit Fitzpatrick book and im currently stuck on q17, page 124. Ill post up question aswell and answer as well. Please if you manage to get the answer, please tell me your working out as i couldnt get the answer. Q 17) A stone is thrown so that it will...

Hey, Im currently doing 4unit but i stuffed up real bad in my complex number test, 25% (10/40) and yeah im last in the class. :burn: My teacher recommended that only students with 75+% to continue on with 4unit and only 2 students in my class bearly made it over that. The rest was in the...