Click to Chat

1800-2000-838

+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
`        The point A divides the join of P(-5,1) and Q(3,5) in the ratio K:1. Find the two values of k for which the area of triangle ABC, where B is (1,5) and C is (7,-2), is equal to 2 units.`
7 years ago

68 Points
```										Dear chanchal ,
let the co-ordinates of  A be (x ,y). then x =  3k-5/k+1  ,  y =5k+1/k+1
now use the determinant formulae for calculating the area of triangle ,
we get ,
|14k-66/k+1| = 4
taking +4 and -4 separately ,
14k-66 =4k+4  gives k =7  and 14k-66 = -4k-4 gives , k= 31/9
Please feel free to post as many doubts on our discussion forum as you can. We are all IITians and here to help you in your IIT JEE preparation. Now you can win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.
```
7 years ago
Think You Can Provide A Better Answer ?

## Other Related Questions on Discuss with colleagues and IITians

View all Questions »
• Complete AIPMT/AIIMS Course and Test Series
• OFFERED PRICE: Rs. 15,900
• View Details
• Complete JEE Main/Advanced Course and Test Series
• OFFERED PRICE: Rs. 15,900
• View Details