nafiul9090 wrote:If P#=P/P-1, what is the value of P##
i p/p-1
ii 1/p
iii p
iv 2-p
v p-1
please help
Let p=3.
Then p# = 3/(3-1) = 3/2.
Then (p#)# = (3/2)# = (3/2) / (3/2 - 1) = (3/2) / (1/2) = 3.
This is our target.
Now we plug p=3 into the answers to see which yields our target of 3.
A quick scan reveals that only
C works.
The correct answer is
C.
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