Question

a = 1, b = 2, C = 3, d = 0, find the numerical value of 2a2 + 2b2 + 2c2 + 2d2 – 2bc – 2cd – 2da – 2ab​

Answer 1

Answer:

Answer is here

step by step explanation

2*1*2+2*2*2+2*3*2+2*0*2-2*2*3-2*3*0-2*0*1-2*1*2

4 +. 8. + 12. +0. -. 12. -0. -. 0. -4

According to BODMAS

24 - 16

= 8