If \pi/3 is the angle between the straight line px+qy+r=0 and xsin\alpha+ycos\alpha=r(r\neq0) which meet at a point A and the straight line xcos\alpha-ysin\alpha=0 also passes through the point A, then

TS EAMCET 14-Sep-2020 Shift 1 Solved Paper

Section: Mathematics

Question : 45 of 160

Marks: +1, -0

is the angle between the straight line px+qy+r=0 and xsinα+ycosα=r(r≠0) which meet at a point A and the straight line xcosα−ysinα=0 also passes through the point A, then

p2+q2=4
p2+q2=2
p2+q2=r2
p2+q2=2r2

Validate

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p	q	r
sin‌α	cos‌α	−r
cos‌α	−sin‌α	0