1 + 31 + 32 + .... + 35 এর সমষ্টি কত?
Solution
Correct Answer: Option D
দেওয়া আছে,
a = 1
r = 3/1 = 3
n = 6
S = a × {(rn - 1)/(r - 1)}
= 1 × {(36 - 1)/(3 - 1)}
= 364
a = 1
r = 3/1 = 3
n = 6
S = a × {(rn - 1)/(r - 1)}
= 1 × {(36 - 1)/(3 - 1)}
= 364
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