Question 2
A binary operation on the set of real numbers excluding -1 is such that for all m, n ε R, m Δ n = m + n + mn. Find the identity elmeent of the operation.
Objective
Question details
- Exam body
- OAU
- Subject
- Mathematics
- Year
- 2020/2021 - Model
- Question no.
- #2
- Type
- Objective
More from this paper
- Q4What is the mean of the data t, 2t-1, t-2, 2t-1, 4t and 2t+2?
- Q5Find the median of 4, 1, 4, 1, 0, 4, 4, 2, and 0.
- Q65, 8, 6 and k occur with frequencies 3, 2, 4 and 1 respectively and have a mean…
- Q7What is the mean deviation of x, 2x, x + 1 and 3x, if their mean is 2?
- Q8What is the mean deviation of 3, 5, 8, 11, 12 and 21?
- Q9If y varies directly as the square root of x and y = 3 when x = 16, calculate y…