# a level maths

Watch
#1
Given that y=1/64x^3 express each of the following in the form kx^n, where k and n are constants.
a) y^1/3
b)4y^-1
0
1 week ago
#2
(Original post by miarenn12)
Given that y=1/64x^3 express each of the following in the form kx^n, where k and n are constants.
a) y^1/3
b)4y^-1
Is that or

How far have you got?

0
#3
(Original post by Plücker)
Is that or

How far have you got?

The second, not very far. The answers are a) 1/4 x and b) 256x^-3
0
1 week ago
#4
What is y^(-1)? Either treat it as
1/y
Or use the rules of indices. Then multiply by 4.
0
1 week ago
#5
I did some surds for my homework yesterday
0
1 week ago
#6
remeber for a, y^1/3 just means cube root
0
X

new posts
Back
to top
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

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

### Poll

Join the discussion

#### With no certainty that exams next year will take place, how does this make you feel?

More motivated (65)
27.78%
Less motivated (169)
72.22%