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Spoiler: I say (b) ...
Originally Posted by skeeter Spoiler: I say (b) ... i agree
** ** but the expression for A here is always non-negative, so the final expression in the above line follows.
Last edited by greg1313; Feb 7th 2017 at 12:19 PM.
agree with you
I almost was fooled by (d)! (b) is equivalent to but (d), of course, does not have x squared.
Next, we can do some superroot problems! Inverse tetration is a hoot!