Just when I thought I was confortable with the rules

Question

Just when I thought I was confortable with the rules:

MBAlad · Answer

Am confused - I thought a^b^c = a^bc???

ncp · Answer

Answer is 2^8.

a^m/a^n = a^(m-n)

Viperace · Answer

I get the exact same question 1 and I got it wrong :-D

I miss the power of power. :oops:

lfox2 · Answer

Work the powers 

(4-1)(4-1) = 16-4-4+1 = 9 = TOP HALF = 2^9 THEN IT 2^9 - 2^1 = 2^8

Hope I get something like this on the real GMAT, taken it a few times, and always get a standard deviation to start with!

MBAlad · Answer

OA is A - well done guys

So to follow on:

If d=2^64 and p=2^3

p^d = ??

mbagal1 · Answer

Hi,

That would be: 2^(3*(2^64))

MBAlad · Answer

Can you simplify it further?

trivikram · Answer

guys if the numerator is 2^(2)^3 it is 2^6 right


This thing killed me last time in gmat

mbagal1 · Answer

Not sure how you could do that, I mean 2^64 is just that, and the multiple 3* 2^64, cannot really be simplified. 

Of course, 2^(3*(2^64)) = 8^(2^64)

mbagal1 · Answer

No, that would be 2^8

2^(2^3) = 2^8

trivikram · Answer

OK

so (2^3)^2 = 2^6?

mbagal1 · Answer

I almost thought you were wrong with that, but it turns out you are right.

BLISSFUL · Answer

A. 2^8

remember: a^b^c = a^(b^c) ..always

 not (a^b)^c

Just when I thought I was confortable with the rules

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