Original post by gress12
...
Oh dear...
What happens to the second bracket when ??
Put k in mate and you get -8
Original post by RDKGames
Oh dear...
What happens to the second bracket when ??
What happens to the second bracket when ??
k is -8?
Original post by gress12
k is -8?
is not equal to -8...
The answer is, the variable isn't...
Original post by RDKGames
is not equal to -8...
The answer is, the variable isn't...
The answer is, the variable isn't...
i meant
if you sub k into the second bracket
you get k - k
so is k = -8?
Original post by gress12
i meant
if you sub k into the second bracket
you get k - k
so is k = -8?
if you sub k into the second bracket
you get k - k
so is k = -8?
Again, . It COULD be, but doesn't have to be. There is nothing to say that it must be, so why would it be??
though...
Original post by RDKGames
Oh dear...
My thoughts too. OP you're doing A Level maths and you don't know how a function works (tbh even if you don't know what a function is this question is still trivial).
Before tackling past paper Qs you really should be familiar with the very basics such as what functions are. Although if the exam is this year then it's probably too late.
This is the reason why people do 'so well' in papers and then flop the real exam. It's because people get used to doing standard Qs by rote and then when the examiner even slightly changes one thing ('changes', not even necessarily 'make more difficult'), everyone struggles because they don't understand any of the maths or even have their fundamentals sorted out.
Quick Reply
Related discussions
- Maths for economists - constrained maximisation questoin
- circle question help
- Isaac physics SPC 2022
- Senior Physics Challenge Isaac Physics
- Edexcel GCSE Geography B Paper 2 (1GB0 02) - 9th June 2023 [Exam Chat]
- Isaac Senior Physics Challenge 2024
- Energy dissipated
- Senior Physics Challenge 2022
- factors effecting bond strength
- Learning a 2nd language
- Physics Question help
- best way to revise maths
- Ln integration
- 26 year old uni student contemplating A level exams for Portuguese and Spanish
- Why study modern languages instead of study abroad?
- Solving Differential Equations
- Korean at SOAS
- New Spec A Level Sequences
- How do I derive the order of growth in this code?
- miski's GCSE GYG study diary! 💋🧸
Latest
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
