Question

If a = –2,b=–3and c= 4 find the value of a²+b²+c²-ab-bc-ca​

Answer 1

✔✔ Answer ✔✔

⏺ Given ✏

✒ a ✒ -2
✒ b ✒ -3
✒ c ✒ 4

⏺ Find ✏

✒ a^2 + b^2 + c^2 - ab - bc - ca

⏺ Solution ✏

✏ Put values

➡ (-2)^2 + (-3)^2 + (4)^2 - (-2)(-3) - (-3)(4) - (4)(-2)

➡ 4 + 9 + 16 - (6) - (12) - (-8)

➡ 19

Answer 2

put values of a , b and c in that equation who you want to find out

please see answer in the pic given below

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