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1. a - 1/a = 4 হলে a3 - 1/a3 = ?
- A. 75
- B. 75
- C. 75
- D. 75
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
= 76
Post your comments here:
1. a - 1/a = 4 হলে a3 - 1/a3 = ?
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
= 76
Post your comments here: