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From my crap knowledge of chem so may be wrong... (a) Potassium isn't soluble in Iodide but Lead is soluble with Sulfate so you can't separate Lead and Sulfate but you can separate Potassium and Iodide. (b) Silver and carbonate are soluble so you can't separate them and also with Magnesium and...

Yes you're right sorry im out of it :P so you just solve like I did.

typo its (x+y+2x+2y)

$ Using equation 1 $ (x-y)^2 +2(x^2-y^2) =0 (x-y)(x+y+2x+2y) =0 3(x-y)(x+y)=0 x=y $ or $ x=-y $ Sub into (2) $ (\sqrt{5} , \sqrt{5} ) Do the same thinking for q2 Hint: May involve cubes.

Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread Just as long as the question says "No air resistance."

lel burnt my hand doing this experiment.

Re: HSC 2016 2U Marathon Yeah our maths teacher always referred to that rule as the burning lady rule after that point.

Re: HSC 2016 2U Marathon It's whenever 2 unit kids learn the rule hahahah

Re: HSC 2016 2U Marathon :(I tried.

Re: HSC 2016 2U Marathon I think it's time to explain the burning lady rule. So what happened is on that day we had assembly and there were these dancing people. Just as the show opens the lady puts a ball of flames into her mouth and she screws up and it catches her face on fire... So she was...

? Just put it in quotes it makes it look better and also less bothersome for me to reply. Words' of God* Saying it's from the Quran would be circular tho ? There's a problem with this argument. We don't believe God actually said "Be" or "kun" rather it's to show how easy it is for...

Re: HSC 2016 2U Marathon Correct ! New question: $ Find $ f'(\pi) $ if $ f(x) = e^{\sin{e^{\cos{x}}}}

Yes ! The Quran many times curses those who blindly follows their forefathers. Also it is compulsory to learn about our religion and have a strong conviction of God and prove him without circular arguments. Ustadh Said Nursi taught me this and it really pains me when people believe blindly...

How does this not degrade a "god?" He's not only degraded by being born through pregnancy but also his title of God is removed when he is in the belly of Mary. One of the Attributes of God is that he is not needing of anyone and independent. But when you say he is born you remove that title from...

Yeah blame their impotence for their situation... Im sure if you were in those war torn countries you'd be able to stop the situation...

Re: HSC 2016 2U Marathon $ New question $ $ Find the radius of a circle with arc ABC such that AC the distance of the chord is 2 meters and BD (the perpendicular from AC) is 10 cm.

Re: HSC 2016 2U Marathon This is right :P

How does this prove the integral using info given ? EDIT: ahhh okay after the substitution !

I never said you did? However, based on your previous posts it elucidates it pretty well...

$ Bro just treat $ \sinh{x} $ as $ \sin{x} $ and $ \cosh{x} $ as $ \cos{x} $ it works. $