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if the equations y=mx+c and xcosalpha+ys...

if the equations `y=mx+c` and `xcosalpha+ysinalpha=p` represent the same straight line then:

A

`p=c sqrt(1+ m^(2))`

B

`c=p sqrt(1+ m^(2))`

C

`cp= sqrt(1+m^(2))`

D

`p^(2) + c ^(2) +m^(2) =1`

Text Solution

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The correct Answer is:
B
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TARGET PUBLICATION-STRAIGHT LINE -CRITICAL THINKING
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