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if p+q+r=1 and pq+qr+pr= -1 and pqr=-1,find the value of p^3+q^3+r^3.

if p+q+r=1 and pq+qr+pr= -1 and pqr=-1,find the value of p^3+q^3+r^3.
 

Grade:9

3 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
2 years ago
576-272_2.PNG

use this and simplify RHS p+q =1-r likewise

the final answer will come to be 1

Regards
Vikas TU
14149 Points
2 years ago
576-272_2.PNG
Dear student 
Please refer the clear image , 
The image above does not looks good , it is blurr.
Hope for the best 
Good Luck 
Cheers 
Devendra Gautam
askIITians Faculty 22 Points
2 years ago
637-1019_IMG_20200519_120427515.jpg

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