Expand these equations5.(a +1/a)²7.(a+1/a)²+(a-1/a)²8.(a+1/a)²-(a-1/a)²
5.(a+1/a)square
=a square +2× a× 1/a +1/a square
a square +2+1/a square
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5.(a+1/a)square
=a square +2× a× 1/a +1/a square
a square +2+1/a square