Meggggggggggg
Badges: 9
Rep:
?
#1
Report Thread starter 1 month ago
#1
Can anyone help explain what this question means and how to do the first couple so I know what I'm meant to do?
Name:  Capture.PNG
Views: 9
Size:  150.6 KB
0
reply
mqb2766
Badges: 18
Rep:
?
#2
Report 1 month ago
#2
(Original post by Meggggggggggg)
Can anyone help explain what this question means and how to do the first couple so I know what I'm meant to do?
Name:  Capture.PNG
Views: 9
Size:  150.6 KB
Chain two or more functions together so the output of one is the input to another.

For the second one, which functions might be useful?
0
reply
Meggggggggggg
Badges: 9
Rep:
?
#3
Report Thread starter 1 month ago
#3
(Original post by mqb2766)
Chain two or more functions together so the output of one is the input to another.

For the second one, which functions might be useful?
oh ok, so for example jg(x) would be 4sqrtx? How would you then divide it by 2 to get part ii)?
0
reply
mqb2766
Badges: 18
Rep:
?
#4
Report 1 month ago
#4
(Original post by Meggggggggggg)
oh ok, so for example jg(x) would be 4sqrtx? How would you then divide it by 2 to get part ii)?
Close with jg(x), but think about the order. How can a 4 become 2? Not just by dividing by 2.
0
reply
Meggggggggggg
Badges: 9
Rep:
?
#5
Report Thread starter 1 month ago
#5
(Original post by mqb2766)
Close with jg(x), but think about the order. How can a 4 become 2? Not just by dividing by 2.
gj(x)? would that then be sqrt4x which is the same as sqrt4sqrtx which is 2sqrtx??
0
reply
mqb2766
Badges: 18
Rep:
?
#6
Report 1 month ago
#6
(Original post by Meggggggggggg)
gj(x)? would that then be sqrt4x which is the same as sqrt4sqrtx which is 2sqrtx??
Yes. That's the sort of thinking about elementary functions and how they're chained together they want you to do.
1
reply
Meggggggggggg
Badges: 9
Rep:
?
#7
Report Thread starter 1 month ago
#7
(Original post by mqb2766)
Yes. That's the sort of thinking about elementary functions and how they're chained together they want you to do.
ok thanks! however i'm still confused about part iii), when there's indices involved i get confused.
0
reply
mqb2766
Badges: 18
Rep:
?
#8
Report 1 month ago
#8
(Original post by Meggggggggggg)
ok thanks! however i'm still confused about part iii), when there's indices involved i get confused.
So what does a +1 in the index represent. Which elementary functions may be useful?
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Should there be a new university admissions system that ditches predicted grades?

No, I think predicted grades should still be used to make offers (716)
33.9%
Yes, I like the idea of applying to uni after I received my grades (PQA) (904)
42.8%
Yes, I like the idea of receiving offers only after I receive my grades (PQO) (399)
18.89%
I think there is a better option than the ones suggested (let us know in the thread!) (93)
4.4%

Watched Threads

View All
Latest
My Feed