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Grade: 9

                        

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

5 months ago

Answers : (3)

Saurabh Koranglekar
askIITians Faculty
8407 Points
							576-272_2.PNG

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

the final answer will come to be 1

Regards
5 months ago
Vikas TU
12281 Points
							
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 
5 months ago
Devendra Gautam
askIITians Faculty
22 Points
							637-1019_IMG_20200519_120427515.jpg
						
5 months ago
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