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1. a + 1/a = 4 হলে, a3 + 1/a3 = কত?
- A. 45
- B. 45
- C. 45
- D. 45
Answer: Option B
Explanation:
দেওয়া আছে, a + 1/a = 4
a3 + 1/a3 = ( a + 1/a)3 - 3. a. 1/a ( a + 1/a)
= (4)3 - 3 × 4
= 64 - 12
= 52
Post your comments here:
1. a + 1/a = 4 হলে, a3 + 1/a3 = কত?
Answer: Option B
Explanation:
দেওয়া আছে, a + 1/a = 4
a3 + 1/a3 = ( a + 1/a)3 - 3. a. 1/a ( a + 1/a)
= (4)3 - 3 × 4
= 64 - 12
= 52
Post your comments here: