# tickboom's latest activity

• tickboom reacted to yashbb's post in the thread How do i do this binomial expansion q from 2020 past hsc paper. hellllpppp plsssssss with Like.
THANK YOUUUUUUU!!!!!
• Try this ...
• tickboom reacted to cassicowfan's post in the thread Maths Ext 1 - Got Some Questions with Like.
idk if its how ur supposed to but u can prove DEC and AEF are similar so EF/DE=AF/DC AC=AD+DC =-DA+DC =v-u bcus DE = DA + AE DE = u +...
• Does this help? It's a similar question and I reckon if you use the same approach, you should be able to work it out ...
• tickboom reacted to MathsVideosAustralia's post in the thread 400+ Free Mathematics Advanced Videos with Love.
Hi all, I'm a Head of Mathematics from Brisbane Australia. I see you're going to be in lockdown for a while, so I wanted to help. I've...
• tickboom reacted to CM_Tutor's post in the thread Math Ext 2 - Got Some Questions with Like.
I agree with @notme123 that the \cfrac{2}{n} values are the widths of each rectangle. However, on first looking, there appears to me to...
• tickboom replied to the thread Math Ext 2 - Got Some Questions.
These rectangles and curves questions pop up quite a bit in relation to inequality proofs, so it's good to get comfortable with the...
• tickboom replied to the thread Maths Help.
P(B | A) = P(B and A) / P(A) ... in this case, let A be winning the first season, and B be winning the second season
• tickboom replied to the thread Doing Extension 2 Math Year 12.
Funnily enough I got exactly 94 for my extension 2 HSC mark. From memory I had a crack at everything, but there was one question where I...
• tickboom reacted to CM_Tutor's post in the thread A general question for limits with Like.
I can similarly rewrite \cfrac{\sqrt{x^2 + x^3}}{x} = \cfrac{\sqrt{x^2(1 + x)}}{x} = \cfrac{\sqrt{(-1)^2 x^2(1 + x)}}{x} =...
• tickboom replied to the thread A general question for limits.
Yes good point well presented!
• tickboom replied to the thread A general question for limits.
Oooooh yes very good point! ... What about this approach? (I squared top and bottom to simplify instead) ... Or does this approach also...
• tickboom replied to the thread A general question for limits.
Is it 1? ... My instinct was to try and get that x out of the denominator ...
• tickboom reacted to 011235's post in the thread What Happened here? with Like.
1^n = 1, always, so 1^(r-1) = 1
• tickboom replied to the thread What Happened here?.
Doesn't this simply mean that when x=1, the steepness of the tangent of the curve y=x^r happens to be r?