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It was a prelim 3u question

thanks for doing the first one, but is there any way to do the 2nd one without just expanding both sides?

My brother asked me to do this question but I couldnt do it 1. Prove that Root 3 is irrational (pg 37 in Cambridge Yr 11 Book Question 4) 2. Prove the identity ( a + b + c )( ab + bc + ca ) - abc = ( a + b )( b + c )( c + a )

Pmed

Does this hide the "Last Activity" and "Current Activity" on your profile? If it doesnt how does one hide these two things

Jenny puts aside $20 at the end of each month for 3 years. How much will she have at the end of the 3 years if the investment earns 8.2% per annum paid monthly. Could someone show me full working please

This is a question to all of those who tutor at a Library...where exactly do you do it? Because libraries are meant to be quiet and the study rooms are supposedly not be used for private tutoring so where else can you go?

what did you get

thanks jnney

thanks for offering your advice, its really kind of you but unfortunately I dont go to high school anymore I just graduated

I did chem of art but I think I got a really bad mark for it. Do options scale differently though cos everyone at my school says chem of art is the hardest option