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1. (x-1 + y-1)-1 এর সরলকৃত রাশি কোনটি?

  • A. y/(x - y)
  • B. y/(x - y)
  • C. y/(x - y)
  • D. y/(x - y)

Answer: Option B

Explanation:

√(x^-1)y. √(y^-1)z. √(z^-1)x

= √(y/x). √(z/y). √(x/z)

= √y/√x. √z/√y. √x/√z

=1

(ans)


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