Re: HSC 2013 4U Marathon
Let
Factorise
The rest is just solving quadratics.
Let
Factorise
The rest is just solving quadratics.
I i'm wondering, shouldn't this be <3? because that never reaches 3?
The expression on the right is an infinite series, which is EQUAL to 3.I i'm wondering, shouldn't this be <3? because that never reaches 3?
Are you allowed to say =3?
Let x=0.9999999.....I i'm wondering, shouldn't this be <3? because that never reaches 3?
Are you allowed to say =3?
Not quite getting this.The expression on the right is an infinite series, which is EQUAL to 3.
If I took a partial sum that added a finite number (say N) of terms, then you could say it's less than 3.
Kinda the same reason why 0.99999..... = 1, contrary to popular belief that 0.999999...... < 1.
Not quite getting this.
So does that mean this is wrong? (changing the places of < sign and = sign)
Not sure if 4U marathon or harder 3U marathon.
damnn 7 marksYep HeroicPandas, that's pretty much it, that is 7 marks from a school trial (ascham 2005)