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Miles Kumar Tiwary

· started a discussion

· 1 Months ago

How can t-5=1?

Question:
If  \(t+\cfrac{1}{t-5}=7\), find \((t-5)^{1015}+\cfrac{1}{(t-5)^{730}}\)   =?
Options:
A) 1
B) 2
C) 5
D) 6
Solution:

Ans: (b)

Madhukar Kumar

· commented

· 1 Months ago

if x+1/x=2 then x=1, here (t-5)+1/(t-5)=2, so t-5=1

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