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A : If the angle between the lines kx-y+...

A : If the angle between the lines `kx-y+6=0, 3x+5y+7=0` is `pi//4` one value of k is 4
R : If `theta` is angle between the lines with slopes `m_(1), m_(2)` then `tan theta=(|m_(1)-m_(2)|)/(|1+m_(1)m_(2)|)`.

A

A, R are correct, R is correct explaination of A

B

A, R are correct, R is not correct explanation of A

C

A is true, R is false

D

A is false, R is true

Text Solution

Verified by Experts

The correct Answer is:
D
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