Mathematics: Post your doubts here!

[Kirabo Takirambudde]

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can someone explain why the answer is square root of 7 nt square root of 5?

answer to which one??? part (a)?

 

[pennies]

answer to which one??? part (a)?

part (iii)

 

[shanky631]

part (iii)

Bro, can u plz show ur sketch for part ii

 

[Kirabo Takirambudde]

Another one plz..
View attachment 17295

Haha, dude especially make sure with vectors that you understand what I've done cause almost every other question will be exactly the same with just different words, lol

 

[shanky631]

Haha, dude especially make sure with vectors that you understand what I've done cause almost every other question will be exactly the same with just different words, lol

Hey dude, can u also show me sketches of argand diagram like for the question posted above.

 

[shanky631]

View attachment 17297




can someone explain why the answer is square root of 7 nt square root of 5?

leadingguy plz solve part ii and part iii

 

[momo_khan]

can any one explain me how to work with this method in p3 vectors

Use scalar product to obtain a – b + 2c = 0 and 2a + 2b + c = 0 B1
Solve and obtain one ratio, e.g. a : b M1
Obtain a : b : c = 5 : −3 : −4, or equivalent A1
Substitute coordinates of a relevant point and values for a, b and c in
general equation of plane and evaluate d M1
Obtain answer 5x – 3y – 4z = −2, or equivalent

and how to calculate maximum and minimum argument and modulus of a complex number from argand diagram ?

whitecorp Can you help me with it plz? Have some more questions too...have the paper in 2 days..

 

[leadingguy]

parthrocks

 

[leadingguy]

leadingguy plz solve part ii and part iii

shanky631

hope I am not wrong over this as still I am nt sure this is still my week chapter

 

[XPFMember]

can any one explain me how to work with this method in p3 vectors
how to calculate maximum and minimum argument and modulus of a complex number from argand diagram ?

AsSalamoAlaikum Wr Wb..!

Try if this helps: Complex No. max/min IzI and arg(z) - P3

 

[xyz!]

can sum 1 pls solve d 2nd part of this question? with diagram! pls.....

 

[shanky631]

can sum 1 pls solve d 2nd part of this question? with diagram! pls.....

Same doubt, plz can someone help.

 

[whitecorp]

View attachment 17294

nightrider1993
whitecorp
minato112

The full solutions for this problem:




Hope it helps. Peace.

 

[whitecorp]

Another one plz..
View attachment 17295

The full solutions for this vectors problem here:



Hope it helps. Peace.

 

[whitecorp]

Thanks a lot
Are you a tutor ?
Good luck & have a nice day

That is correct, I teach A level H2 maths. Have a good day too. Peace.

 

[whitecorp]

thanks a ton sir

No problem, peace.

 

[Kirabo Takirambudde]

Please help with and 9(ii) & 10(i)

In question 9, after you integrate you are left with:
(2A – 5)0.5 - kt = c

when you find the square root of what is inside the bracket, is it not :
±3 ? if so why does the marking scheme only use the value +3????

Thanks

 

[junyl93]

How do u question 10 (i)???

 

[parthrocks]

Hey. whitecorp plzzzzz. Help me with ny doubts that i have posted plz urgently need it

 

[parthrocks]

That is correct, I teach A level H2 maths. Have a good day too. Peace.

Hello sir for iteration!!a doubt in my mind!!
Do we take the initial value as average suppose if the root lies between 1
6<x<9 then do we do (6+9)/2 and take 7.5 as initial value or just take 6 the starting value as initial value !!!
plz its uregent and many of my friends also have this doubt plz help sir