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The coefficients of x^4 and x^5 in the expansion of (3-x)^n are equal in magnitude but opposite in sign. find the value of n. ans: n=19 thankss

thanks guyss~~ :)

can someone please help me with the question below. A loan of $6000 over 5 years at 15% p.a. interest, chraged monthly, is paid back in 5 yearly instalments. How much is each instalment, and how much money is paid altogether? ans: $1835.68; $9178.40

i'd really appreciate it if someone could help me with these very annoying questions:confused:: 1) Find the exact area between the curve y=1/x, the x-axis and the lines y=x and x=2 in teh first quadrant. ans: (0.5+ln2) units^2 2) Find the indefinite integral (primitive function) of 3^2x-1...

thanks alot!

can someone please help me with the question below, i really can't get the answer which is 0.42 units^2: Find the area enclosed between the curve y=x^3, the x-axis and the line y=-3x+4? Thaaaanks in advance

Hello can someone help me answer this question, State the products formed from the electrolysis of aqueous sodium cholride. and it would be really helpful if you could include the half equations and reduction potentials involved so i can thoroughly understand, thaaaaaaaaanks in advance.:karate:

so when the sodium chloride solution is concentrated, chlorine gas withh be produced at anode? what will happen at the cathode, does being concentrated affect the cathode?

can someone please help me with the question below: The half-life of radium is 1600 years. Find the percentage of radium that will be decayed after 500 years?

A particle, whose displacement is x, moves in simple harmonic motion. find x as a function of t if acceleration= -4x and if x=3 and velocity = -6 root 3 when t=0. i'm trying to use: x= a sin(nt+alpha)? :hammer:

Thanks alot guys:)

hello =) can someone please show me how to work out the questions below, it would be greatly appreciated: 1) An observer sees a plane directly overhead, 2km above the ground. The plane is moving horizontally at a constant speed of 500km/h. Find the rate at which the distance will be increasing...

hey i'm doing an assignment on the dot point of outlining a role of a chemist and i'm doing a pharmacologist, i can't seem to find sufficient info on the principle a pharmacologist uses?:uhoh: