Maths, Addmaths and Statistics: Post your doubts here!

[sj0007]

what is the area of trapezium?

area= 0.5 x height x (sum of parallel sides)
so in this case h=4
parrallel side 1= 13
and parallel side 2 =3
hence the area is 32...

 

[Neon light]

anyone giving Add maths tomorrow????? I seriously need some help..

 

[Saad Mughal]

anyone giving Add maths tomorrow????? I seriously need some help..

In what?

 

[Neon light]

In what?

relative velocity

 

[Saad Mughal]

relative velocity

Watch these 2 videos and then solve Past Papers (at least 10 questions).

 

[Suchal Riaz]

In what?

by the context i can guess in add maths. but honestly he may wants help in humanities and asking for add maths just for curiosity.

 

[Saad Mughal]

by the context i can guess in add maths. but honestly he may wants help in humanities and asking for add maths just for curiosity.

Er.. I was asking for the topic. -_-

 

[Suchal Riaz]

Er.. I was asking for the topic. -_-

(quoting dadi jaans famous dialogue)
ACHAAWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

 

[Saad Mughal]

(quoting dadi jaans famous dialogue)
ACHAAWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

W phir sasty hogaye market main. Yay.

 

[Suchal Riaz]

btw do u think relative velocitys gonna come tomorrow.
i will be maybe only student in hall. no one is giving add maths. if there is a private candidate i dont know otherwise ... i m afraid... 20 invigilators single student.
agle din ailaan hoga: aik bichara student 20 invigilators ke hathoon halaq kar diya geya

 

[Suchal Riaz]

W phir sasty hogaye market main. Yay.

i just rented some from asma.

 

[Saad Mughal]

btw do u think relative velocitys gonna come tomorrow.
i will be maybe only student in hall. no one is giving add maths. if there is a private candidate i dont know otherwise ... i m afraid... 20 invigilators single student.
agle din ailaan hoga: aik bichara student 20 invigilators ke hathoon halaq kar diya geya

I think it'll come in paper 2 and the Cartesian plane one (i and j) will come.

 

[Young Stunner]

Yes it

btw do u think relative velocitys gonna come tomorrow.
i will be maybe only student in hall. no one is giving add maths. if there is a private candidate i dont know otherwise ... i m afraid... 20 invigilators single student.
agle din ailaan hoga: aik bichara student 20 invigilators ke hathoon halaq kar diya geya

Yes RV will come in P1 & P2 for sure and the question can be of 4marks or 8marks. BTW no choices anymore .

 

[Saad Mughal]

Yes it
Yes RV will come in P1 & P2 for sure and the question can be of 4marks or 8marks. BTW no choices anymore .

It comes in 1 paper only, very rarely has RV come in both papers!

 

[Ishrar Afrida]

Q.7 How to find x-co-ordinate of D?

 

[mohdumar]

Help Bro ;
At 12 00 hours, a ship has position vector (54i + 16j) km relative to a lighthouse, where i is
a unit vector due East and j is a unit vector due North. The ship is travelling with a speed of
20 km h in the direction 3i +4j.
(i) Show that the position vector of the ship at 15 00 hours is (90i + 64j) km. [2]

find unit vector in direction 3i+4j
then multiply it with speed 20kph to get velocity vector

 

[Saad Mughal]

find unit vector in direction 3i+4j
then multiply it with speed 20kph to get velocity vector

I did the same. But I don't get the logic of the multiplication.
The direction and Cartesian plane method is more logical.

 

[Snowysangel]

How many different 4 digits numbers greater than 3000 can be formed using the six digits 1,2,,3,4,5,6,if no digit can be used more than once..

So i know we would make 4 dashes and select the number but how do we choose the digits ?? Explain me please

4P1 x 5P4 s

 

[Ishrar Afrida]

What is the period of 4tan(3x) and why?
Someone pls ans my previous question!

 

[Snowysangel]

What is the period of 4tan(3x) and why?
Someone pls ans my previous question!

180/3= 60 cause the period of a tanx= y graph is 180'