Mathematics: Post your doubts here!

[Haris878]

Do you remember how many marks the question was of

I remember the fg(x) question being a decimal

Dont rmemeber my answer, just guessing but was it 2.8 or 14/5

 

[fourtris46]

anyone writing stats paper7?

 

[Haris878]

the inverse part of the question was 4 marks and i think another 3 marks maybe for fg(x)

Don't remember clearly but we had to find inverse for both f and g righ

 

[Haris878]

Answer to 2nd part of ap/gp question?

 

[Sareem Farooqui]

The 8 mark question was basically asking us to firstly find the equation of the tangent to curve C1 and that same tangent will intersect somewhere with curve C2. Secondly find the value of k which was found out by using the formula b^2-4ac=0. You will ultimately be finding out the point of intersection of tangent with curve C2 which was (1.5 , 1) for me. Well, I am from Riyadh and mine was also v 12 so let's hope for the best, as soon as i handed over my paper to the invigilator, every student around me seemed to be so frustrated and all. Personally i did not feel that it was tough but lengthy.

 

[Hamza Umair]

Where can I find maths S1 topical past papers for recent years? (GCEguide has from 2002 -2010)

 

[desterman]

anyone writing stats paper7?

I did 72, you?

 

[fourtris46]

I did 72, you?

me too , how was it ?

 

[desterman]

me too , how was it ?

I think I made a mistake in the Linear Combinations question, do you remember how you solved it? The one about plants

 

[fourtris46]

I think I made a mistake in the Linear Combinations question, do you remember how you solved it? The one about plants

yeah, the ans is 0.173 you do ( 1.5X + X) and find the new EX and VARX

 

[desterman]

yeah, the ans is 0.173 you do ( 1.5X + X) and find the new EX and VARX

Some people told me you have to multiply the final answer by 2, since it could be either of the plants, hopefully I did not make a mistake in another question, as threshold can be 45

 

[Khitan]

Isnt it without replacement? for part 2?My solution:
p(3,5) *2 =(4/5 *1/4)*2 but they havent reduced the total in second term why?

 

[Hamnah Zahoor]

Anyone did P62?

 

[Kanekii]

Anyone did P62?

Yes
How did yours go?

 

[Hamnah Zahoor]

Yes
How did yours go?

good
How was yours?

 

[Kanekii]

good
How was yours?

Alhamdulilah Good

 

[Hamnah Zahoor]

A***** How did you solved the first part of the last question in P62 yesterday?
6 Friends, Boats?

 

[Kanekii]

Does anyone have any notes foe Vectors P3?

 

[hellodjfos;s'ff]

A***** How did you solved the first part of the last question in P62 yesterday?
6 Friends, Boats?

Friends were to be divided into 3 boats so it's a selection/combination. 3 seat, 2 seat and 1 seat boats were available so 6C3*3C2*1C1=60 is the answer. Common mistake some people made was that they used permutations.

 

[Hamnah Zahoor]

Friends were to be divided into 3 boats so it's a selection/combination. 3 seat, 2 seat and 1 seat boats were available so 6C3*3C2*1C1=60 is the answer. Common mistake some people made was that they used permutations.

I solved it incorrectly and used permutations ....Unfortunately.