# a level maths

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#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 month 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 month ago
#4
What is y^(-1)? Either treat it as
1/y
Or use the rules of indices. Then multiply by 4.
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1 month ago
#5
I did some surds for my homework yesterday
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1 month ago
#6
remeber for a, y^1/3 just means cube root
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