The given expression is
[tex] (x+y)^8 [/tex]
The exponent of x is decreasing and y in increasing .
That is ,
[tex] a x^8 + b x^7y+ c x^6y^2 + d x^5 y ^3 + e x^4 y^4 + f x^3 y^5 + g x^2 y^6 +h x y^7 + i y^8 [/tex]
Where a,b,c,d,e,f,g,h,i are th constants
So the correct options are b and d .
