Question

(x+1/x)(x-1/x) is equal to
a.x2-1/x2
b. x+1/x
c. x-1/x
d..none of these
explain ​

Answer 1

Answer:

Option (a) is correct

Step-by-step explanation:

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Answer 2

Answer:

a is the correct answer

(x+1/x)(x-1/x)

if we write this equation into 2 different parts that is

(x+1)(x-1)and ( 1/x × 1/x )

(x+1)(x-1) gives x^2-1 due to identity that is (a+b)(a-b)give a^2-b^2

(1/x)(1/x) gives 1/x^2

and the final answer is x^2-1/x^2