Pure Maths 12 today........

[AhShun]

hey guys..for maths p1 that we wrote, question number 2..i think it was about functions(forgot the question)..did anyone of you manage to express the inverse in the form ax^2 + bx + c. i mean were there three terms or two?

Only 2 terms
2x^2 - 3

 

[Kumkum]

Only 2 terms
2x^2 - 3

thnx..but do you remember what the question was?

 

[AhShun]

Hope it isn't too small

 

[Kumkum]

Hope it isn't too small

is [(x+3)/2] + 1 under the square root or is it only (x+3)/2?

 

[AhShun]

OMG :O
I got it wrong!!! T_T

umm.... i think the 1 is outside the square root
the answer is x^2 -2x -1

 

[Kumkum]

OMG :O
I got it wrong!!! T_T

umm.... i think the 1 is outside the square root
the answer is x^2 -2x -1

are you sure 1 was outside square root? cause i got my answer as x^2 -2x - 1?

 

[Kumkum]

are you sure 1 was outside square root? cause i got my answer as x^2 -2x - 1?

i got 3 terms instead of 2...

 

[AhShun]

i got 3 terms instead of 2...

i asked my friends too and they say the same thing
yeah,there are 3 terms
Your answer is good

 

[Kumkum]

thnx!!