×

#### Thank you for registering.

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

Click to Chat

1800-1023-196

+91-120-4616500

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 C be the circle with centre (0,0) and radius 3 units. the equation of locus of the mid-pts of the chords of the circle that subtend and angleof 120 deg at its center is?

```
3 years ago

## Answers : (1)

alphaa
13 Points
```							Consider chord AC join OA and  OC . Draw perpendicular from O TO B( Mid point of  AC). Let coordinates of B be (h,k). The Angle AOC is 120 deg. Thus angle AOB is 60 deg. Therefore,   Cos 60= OB/OC.    1/2= √h^2 + K^2/3By solving and replacing h,k by x,y we get,x^2 + y2 = 9/4
```
2 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

## Other Related Questions on Analytical Geometry

View all Questions »

### Course Features

• 731 Video Lectures
• Revision Notes
• Previous Year Papers
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Test paper with Video Solution

### Course Features

• 53 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions