rawrryyyy!!!!
2.A.=(X1+X2+X3+X4+X5)^2
=[3+1+0+2+(-2)]^2
=4^2
=16
B.=(X1-2)^2+(X2-2)^2+……..+(X5-2)^2
=(3-2)^2+(1-2)^2+(0-2)^2+(2-2)^2+(-2-2)^2
=(1)^2+(-1)^2+(-2)^2+(0)^2+(-4)^2
=1+1+4+16
=22
C.(3x1-2)^2+…..(3X5-2)^2
=[3(3)-2]^2+[3(1)-2]^2+[3(0)-2]^2+[3(2)-2]^2+[3(-2)-2]^2
=(9-2)^2+(3-2)^2+(0-2)^2+(6-2)^2+(-6-2)^2
=(7)^2+(1)^2+(-2)^2+(4)^2+(-8)^2
=49+1+4+16+64
=134
secret lang yan tol….
