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

Q:- The coplanar points A,B,C,D are (2-x,2,2) , (2,2-y,2) ,(2,2,2-z) and (1,1,1) respectively. Then A. 1/x+1/y+1/z =1 B. x+y+z=1 C. 1/(1-x) +1/(1-y) +1/(1-z) =1 D. None of these

Q:- The coplanar points A,B,C,D are (2-x,2,2) , (2,2-y,2) ,(2,2,2-z) and (1,1,1) respectively. Then


A. 1/x+1/y+1/z =1


B. x+y+z=1


C. 1/(1-x) +1/(1-y) +1/(1-z) =1


D. None of these

Grade:12

1 Answers

Badiuddin askIITians.ismu Expert
148 Points
11 years ago

Dear Tapasranjan

this question can be solved easly by using equation of pane passing through 3 points in determinant form

use determinant form of plane passing trough ((2-x,2,2) , (2,2-y,2) ,(2,2,2-z)

and this plane also passes through (1,1,1) so it will satisfy this point also

put it and simplify


7105-489_7662_untitled.JPG

now open determenant

1/x  + 1/y  + 1/z =1

Please feel free to post as many doubts on our discussion forum as you can.
If you find any question Difficult to understand - post it here and we will get you the answer and detailed
solution very  quickly.
 We are all IITians and here to help you in your IIT JEE  & AIEEE preparation.

 All the best.
 
Regards,
Askiitians Experts
Badiuddin

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