pls solve 2nd one tooo confusing
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Step-by-step explanation:
a-¹= 1/a
b-¹=1/b
1/a. 1/a
_______+ _________
1/a+1/b. 1/a-1/b
1/a. 1/a
=________ +. __________
(b+a)/ab. (b-a)ab
=1/a*ab/(b+a) + (1/a)*ab/+b-a)
b b. b(b-a)+b(b+a)
=_______+_______= _______________
b. + a. b-a. b²-a²
b²-ab+b²+ab
=______________
b²-a²
2b²
=_______
b²-a²
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