√( 1+(144/25) ) = 1+(n/5) হলে, n এর মান কত?
A 6
B 7
C 8
D 9
Correct Answer: Option C
√(1+144/25) = 1+(n/5)Or, √(169/25) -1 = n/5Or, 13/5-1 = n/5Or, 8/5 = n/5So, n = 8
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