Multiplication Operation | MCQs
-
A. None of these
-
B. 8 × 12
-
C. (8 × 6) × 7
-
D. 8 × 6 - 7
Explanation
This is an example of the associative property of multiplication:
a × (b × c) = (a × b) × c
So, 8 × (6 × 7) = (8 × 6) × 7
-
A. 5 - 5i
-
B. None of these
-
C. 5 + 5i
-
D. 7 + 7i
Explanation
Z1Z2 = (2 - i)(3 - i)
= 6 - 2i - 3i + i²
= 6 - 5i - 1 (since i² = -1)
= 5 - 5i
-
A. 13
-
B. 0
-
C. 26
-
D. None of these
Explanation
Substitute x = 1 and y = -1 into the expression:
13(x + y) = 13(1 + (-1)) = 13(0).
Therefore, 13(0) = 0.
✅ Correct: 0 |
❌ Wrong: 0 |
📊 Total Attempted: 0
iamge