[{1-(1-1/P)}-1 ÷ (1-1/P)-1] = কত?

[{1-(1-1/P)}^-1 ÷ (1-1/P)^-1] = কত?

A 1

B -1

C 1/P

D ( P-1)

Correct Answer: Option D

[{1-(1-1/P)}^-1 ÷ (1-1/P)^-1]

[1-(p-1/p)^-1 ÷ (p-1/p)^-1]

[{(p-p+1)/p}^-1 ÷ p/(p-1)]

[(1/p)^-1 ÷ p/(p-1) ]

[p × (p-1)/p]

= p-1