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The value of K gt 0 such that the angle ...

The value of `K gt 0` such that the angle between the lines `4x-y+7=0 and kx-5y-9=0` is `45^@`, is

A

`25/3`

B

`5/3`

C

3

D

5

Text Solution

Verified by Experts

The correct Answer is:
C
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SIA PUBLICATION-STRAIGHT LINE-EXERCISE (PROBLEMS)
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