Q.

The equation of the common tangent  to y2=4x and the curve x2+4y2=8 can be

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya

a

x-2 y+4=0

b

x+2 y+4=0

c

x-2 y=4

d

x+2 y=4

answer is A.

(Unlock A.I Detailed Solution for FREE)

Detailed Solution

The given curves are y2=4x and  x28+y22=1Equation of tangents are y=mx+1 m and y=mx+8 m2+2comparing the above two line equations1m=8m2+2squaring on both sides and then cross multiplym=±12Equation of tangent is y=12x+2⇒2y=x+4⇒x−2y+4=0
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon