Question

9. Write the formulae:
a. (X + Y):-
b. (X+Y+Z)2=
c. (X-Y)2=​

Answer 1

Step-by-step explanation:

this is ur answer

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Answer 2

Step-by-step explanation:

hey mate!!

a) (X+Y)= x^2+ y^2 + 2( xy)

b) (X+Y+Z)^2= x2 +y2 +z2 + 2xy+2yz+2xz

c) (X-Y)^2 = x^2+ y^2 - 2(xy)

^ represent square

hope it helps !!!