$$\frac{2^{x+y}}{2^{x-y}}=?$$
1) x=1
2) y=2
OA:C
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$$? = {2^{x + y - \left( {x - y} \right)}} = {2^{2y}}\,\,\,\,\,\,\,\,\, \Leftrightarrow \,\,\,\,\,\,\,\boxed{\,? = y\,}$$kyuhunl wrote:$$\frac{2^{x+y}}{2^{x-y}}=?$$
1) x=1
2) y=2
The correct answer is therefore (B), immediately.
We follow the notations and rationale taught in the GMATH method.
Regards,
Fabio.
Fabio Skilnik :: GMATH method creator ( Math for the GMAT)
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