How to find a-1/a from a+1/a
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a-1/a=5……………(1)
Formula :-
(a+1/a)^2-(a-1/a)^2=4…………..(2)
(a+1/a)^2-(5)^2=4
(a+1/a)^2=29
(a+1/a)=+/-(29)^1/2
Now a^2–1/a^2 =?
a^2–1/a^2=(a+1/a)(a-1/a)
= ( +/- 29^1/2)(5)
=+/-5.(29)^1/2 , Answer
yetandrasingh937:
Bro we have to find a-1/a
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