CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Let two circles with radii r1 and r2 have their centers at a distance of 2(r1r2).
If r1 and r2 are roots of the equation x22(α+β)x+α2+β2=0, then the relation between α and β for which the two circles are orthogonal is

A
α2+β2=4αβ
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
(α+β)2=4αβ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
α2+β2=αβ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
α2β2=4αβ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B α2+β2=4αβ
For orthogonal of the two circles
c1c22=r12=r22
2(r1r2)2=r12+r22
r12+r22=4r1r2
2(α+β)2+4αβ=4[(α+β)22αβ]
(α+β)2=6αβ
a2+β2=4αβ

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Rectangular Hyperbola
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon