Thank you for registering.

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

Please check your email for login details.
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

The Equation of directrix of a parabola is 3x +4y+15=0 and equation of tangent at vertex is 3x+4y-5=0.Then the length of latus rectum is equal to?

The Equation of directrix of a parabola is 3x +4y+15=0 and equation of tangent at vertex is 3x+4y-5=0.Then the length of latus rectum is equal to?

Grade:11

1 Answers

Arun
25763 Points
3 years ago
Distance between tangent at vertex and directrix
 = 15 -(-5)/5
 = 20/5 = 4
 
Which will be equal to a.
 
Hence length of latus rectum = 4a = 4*5 = 20 units
 
 
Regards
Arun (askIITians forum expert)

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free