If a+b+ c =9 and ab + bc + ca = 23, then a2+b2 + c2=

Hence, 92 = a2 + b2 + c2 + 2 × 23⇒ a2 + b2 + c2 = 35

Q15 of 84 Page 4

If a+b+ c =9 and ab + bc + ca = 23, then a²+b² + c²=

Hence, 9² = a² + b² + c² + 2 × 23

⇒ a² + b² + c² = 35

If a + b + c =0, then, =

If a^1/3+b^1/3 + c^1/3 =0, then

If a+b+ c =9, then ab+bc+ca=23, then a³+b³ + c³ – 3abc =

(a-b)³+(b-c)³+ (c-a)³=