Answer of part 2 with explanation
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(6^-1 - 9^-1)^-1
(1/6 - 1/9)^-1
Taking lcm
(3-2/18)^-1
(1/18)^-1
18
sharmalalit008:
Why we took 1/6 & 1/9
6^-1 means 1/6
Okay
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