p-1p=1 হলে, 6p2-p-1 এর মান কত?
A
76
B
67
C
65
D
56
Correct Answer: 65
p - (6/p) = 1 = > (p² - 6)/p = 1 = > p² - 6 = p = > p² - p = 6 ∴6/(p² - p - 1) = 6/(6 - 1) [∵p² - p = 6] = 6/5