x2-1/x2 এর উৎপাদক দুটির অন্তরফল কত?

A x-1/x

B x+1/x

C ±2x

D ±2/x

Solution

Correct Answer: Option D

x2-1/x=x2-(1/x)2
=(x+ 1/x)(x- 1/x)

নির্ণেয় অন্তরফল = (x+ 1/x) - (x- 1/x)
=x+1/x-x+1/x
=2/x
 
 

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions