The angle between the pair of tangents drawn to the ellipse 3x2+2y2=5 from the point (1,2) is
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
tan-1125
b
tan-1(65)
c
tan-1125
d
tan-1(125)
answer is C.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
The equation of the pair of tangents is given by SS1=T2⇒3x2+2y2−53.12+2.22−5=3x+4y-52⇒9x2−4y2−24xy+40y+30x−55=0 further angle, θ between them can be found by using tanθ=2h2−aba+b=2(12)2−(9)(−4)9+(−4)=21805=1255∴θ=tan-1125