Math, asked by yetandrasingh937, 1 year ago

How to find a-1/a from a+1/a

Answers

Answered by mahfoozfarhan4
2

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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