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Find the slope of a line whose inclinati...

Find the slope of a line whose inclination is `45^∘`?

A

`1/2`

B

`1/ sqrt(3)`

C

`1`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
D
If PSS' forms a triangle, then ellipse
`:. PS + PS' gt SS'`
`rArr K in (-2,2)`
If PSS' is collinear, the pair of coincident lines `rarr K = +-2`
If PSS' neither forms triangle nor collinear then empty set
`rArr PS + PS^(1) lt SS^(1)`
`rArr K in (-oo,-2) uu(2,oo)`
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