Patterns and rules III

This task is about patterns and rules.

Question 1Change answer

illustration: collection of numbers
a) i)
Write down the next two numbers in this pattern. 1, 4, 2, 5, 3, 6, 4, , .
 
   ii)
Write down the rule you used to work out the pattern.

Question 1Change answer

b)
i)
 
Write down the next two numbers in this pattern. 1, 3, 9, 27, 81, , .
 
   ii)
Write down the rule you used to work out the pattern.
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