Question

x 2 - 2yx+ y2 का मान होगा यदी x=1 तथा y = 2​

Answer 1

Answer:

x^2 - 2yx + y^2

= (1)^2 -2*2*1 + (2)^2

= 1 - 4 + 4

= 1

Answer 2

Answer:

2

Explanation:

1(2)-2(2)(1)+2(2)

1(2)-2(2)(1)+2(2)2-4+4

1(2)-2(2)(1)+2(2)2-4+4-2+4

1(2)-2(2)(1)+2(2)2-4+4-2+42