1.

Ifr=1, y = 2 ap2 and z=5, find the value of(ii) x2 + y2 +z2(v) 2x2y - 5yz + xy2(ii) 2x2 - 3y2 +22(1) 3x - 2y + 4zfiv) xy + yz - 2x

Answer»

2) 30 is the correct answer by me

a)19b)30c)35d)7e)-42f)-128



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