Hi, can somebody just tell me why this is right please? Question: Evaluate (1 9/16) ^3/2. The answer is plus or minus 125/64. Can somebody tell me why? Thanks.
Oh, I assumed that was a typo (meaning something like question 1)).
In which case, 1 and 9/16 is the same as 25/16. And that does work. What's the issue you have with it. If it is to the power 3/2, then you can separate it into ((25/16)^1/2)^3. Then it follows.
It's maybe not obvious why it works, but it's rather difficult to know where your problem lies