Sir how do we know in q 10 that we have to take f'' > 0. Why not equal to?
@kianaseebarun Says:
3(a)
Galtat haiii...plus hai..u gave negativit value..
@unlist-b2f Says:
sir 50 tou covid adjusted threshold nahi??? pls reply plssss
@abdullahijaz6798 Says:
This paper was too difficult
@cubingverse2009 Says:
Assalamualikum Sir, can I use Pythagoras theorem to calculate the length of XY at 28:28
@abdullahabdulghafoor4259 Says:
stick to IT job
7A tera baap karega ????
@abdurrafaywali4756 Says:
Assalam O Alaikum Wa Rehmatullahi Wa Barakaatuhu! For question number 4 part a I was blindly plugging in values in my calculator to check which of the value of n will give me a negative nth term, but sir Zain, the way you solved it, was absolutely genius! JazakALLAH khaira sir g, seems like I would have to add the new technique in my notes as well as re-attempt the question!
Reference : 22:11
@VortexWarriorsz Says:
Salaam Sir
Sir at 1:18:44 you are showing the whole working of quadratic formula can’t we do it directly since calculators allowed in As maths exam
Or is this little working also necessary to gain full marks
Or will the marks be cut
@XXX-o6u2b Says:
7(a)??????
@shaeelsajjad5741 Says:
Sir you didnt even find derivative and just used the completing square equation to prove that dy/dx is positive for all values of x is that right? Do we ever really need to find derivative to show that its positive.
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