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PowerExpand |  |
| PowerExpand[expr] expands all powers of products and powers. |
| PowerExpand[expr, {x1, x2, ...}] expands only with respect to the variables xi. |
to 
, whatever the form of 
is. 
to 
, whatever the form of 
is. Expand a square root, implicitly assuming positive real values:
Without PowerExpand, no expansion is done:
The expansion is only correct for positive real variables:
This gives a completely correct result:
This gives a result correct under the specified assumptions:
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| © 2008 Wolfram Research, Inc. | 
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EXAMPLES
Basic Examples 
Scope 