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1. a+b=6 এবং a-b=2 হলে, ab=কত?
- A. ৮
- B. ৮
- C. ৮
- D. ৮
Answer: Option A
Explanation:
4ab = (a + b)^2 - (a - b)^2 = (6)^2 - (2)^2 = 36 - 4
= > 4ab = 32
ab = 8
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1. a+b=6 এবং a-b=2 হলে, ab=কত?
Answer: Option A
Explanation:
4ab = (a + b)^2 - (a - b)^2 = (6)^2 - (2)^2 = 36 - 4
= > 4ab = 32
ab = 8
Post your comments here: