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Question

If the point P(5, k-2) lies on the line x2y+1=0, then find the value of k.



A

5

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B

6

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C

4

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D

3

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Solution

The correct option is A

5


If P(5, k-2) lies on the line x2y+1=0,

then its coordinates must satisfy the equation of the line.

Thus,

52(k2)+1=0

52k+4+1=0

2k=10 

 k=5


Mathematics

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