1-(1-a-1a)-1 ÷(a-1a)-1 এর মান কত?
A
-1a
B
-1
C
1a
Correct Answer:
1 - {a - (1/a)} - 1 ÷ {(a - 1)/a} - 1 = 1 - {(a - 1)/a} - 1 ÷ {(a - 1)/a} - 1 = 1 - 1 = 0