Easy
1 point
ID: #25888
Question
a + 1/a = 3 হলে a³ + 1/a³ এর মান হবে -
Options
1
18
Correct Answer
2
21
Correct Answer
3
27
Correct Answer
4
36
Correct Answer
Explanation
a³ + 1/a³ = (a + 1/a)³ - 3.a.1/a (a + 1/a) = (3)³ - 3(3) = 27 - 9 = 18.
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Type
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