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Question
Which of the following is not a linear equation in two variable
Options
ax + by + c = 0
0x + 0y + c = 0
0x + by + c = 0
ax + 0y + c = 0
Solution
0x + 0y + c = 0
Explanation;
Hint:
0x + 0y + c = 0
0 + 0 + c = 0
⇒ c = 0
There is no variable.
∴ It is not a linear equation
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