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  • If x & y are odd, w & z is even , then 1/8((x2+y2) * (w2+z2)) is _________ a. even b.odd c.is only a fraction d.none

If x & y are odd, w & z is even , then 1/8((x2+y2) * (w2+z2)) is _________ a. even b.odd c.is only a fraction d.none

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we;know;that\*even imes even=even\*even imes odd=even\* odd imes even=even\*odd imes odd=odd\*As;we;know;that;x;and;y;are;odd;so ,;x^2;and;y^2;are;odd\*and;w;and;z;are;even;so,;w^2;and;z^2;are;even\*Also,;w;and;z;are;even;then;2;is;multiple;of;them;so,;4;is;multiple;of\*w^2;and;z^2\*And;even+odd=odd\*even+even=even\*odd+odd=even\*So,;x^2+y^2=even\*w^2+z^2=even\*so,;we;can;take;4;common;from;w^2+z^2;and;2;from;x^2+y^2\*Rightarrow x^2+y^2=2 imes k_1\*Rightarrow w^2+z^2=4 imes k_2\*Rightarrow frac2 imes k_1 imes 4 imes k_28=k_1 imes k_1\* So,;we;can;not;tell;properly;whether;it;is;even;or;odd

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