a + b = 6, al - b = 4 হলে ab এর মান কত?
Created: 2 years ago |
Updated: 7 months ago
best des
Given the equations:
- a + b = 6
- a - b = 4
We can solve for a and b simultaneously. Let's add equation (1) and equation (2) to eliminate b:
(a + b) + (a - b) = 6 + 4
Simplify:
2a = 10
Now, divide both sides by 2 to find the value of a:
2a/2 = 10/2
a = 5
Now that we have the value of a, we can find b using equation (1):
a + b = 6
5 + b = 6
Subtract 5 from both sides to find b:
b = 6 - 5
b = 1
So, a = 5 and b = 1. To find the value of ab, simply multiply a and b:
ab = 5 * 1 = 5
Therefore, the value of ab is 5.
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