Question

6. If a+b+c = 9 and ab + bc + ca=26, find a2+ b2 + c2

pls solve this question​

Answer 1

Answer:

29

Step-by-step explanation:

a+b+c = 9

=> (a+b+c)² = 81

=> a²+b²+c²+2ab+2bc+2ca = 81

=> a²+b²+c²+2(26) = 81 (ab + bc + ca=26)

=> a²+b²+c² = 81-52 = 29

Answer 2

Answer:

answer:

29

Step-by-step explanation:

a=4

b=3

c=2

now ,

a2 +b2+c2

16+9+4

29