#### Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Click to Chat

1800-1023-196

+91 7353221155

CART 0

• 0
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

# Let T1 , T2 be two tangents drawn from (-2, 0) onto the circle C : x2 + y2 = 1 .(1) Determine thecircles touching C and having T1 , T2 as their pair of tangents.(2) Further, find the equations of allpossible common tangents to these circles, when taken two at a time.NEED NOT EXPLAIN PART(1) BUT PLSS EXPLAIN PART(2)

Arun Kumar IIT Delhi
7 years ago
Hi
for the second part you have a formulae for that
$\\S=x^2 + y^2 - 1 \\SS_1=T^2 \\=>(x^2 + y^2 - 1)(3)=(x*(-2)+y*(0)-1)^2$
I hope you know notation i used its the most common notation.

Thanks & Regards, Arun Kumar, Btech,IIT Delhi, Askiitians Faculty