Question

Please help me this maths questions it's urgent please explain step by step
Evaluate:(x+1/x)(x-1/x)​

Answer 1

Answer:

-1

numerator=(x+1)(x-1) which is of the form (a+b)(a-b)

so, numerator=x²-1²=x²-1

now, denominator=(x)(x)=x²

so, numerator/denominator=x²-1/x²=-1 because x² and x² will cut each other)

hope it will help you.

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