f(x+y)^(2)-2x-2y

A function f: R rarr R satisfies sin x cosy (f(2x2y))-f(2x-2y))= cosxsiny(f(2x+2y))+f(2x-2y)) If f'(0)=1/2 , then

If f(x,y)=2x^(2)-xy+2y^(2) then find f_x at the point (1,2)

If f(x,y)=2x^(2)-xy+2y^(2) then find f_x at the point (1,2)

f:R rarr R be a function,satisfying f((x-y)^(2))=(f(x))^(2)-2xf(y)+y^(2)AA x,y in R Answer the following A possible value of f(2017)

A function f: RvecR satisfies xcosy(f(2x+2y)-f(2x-2y)=cosxsiny(f(2x+2y)+f(2x-2y))dot If f^(prime)(0)=1/2,t h e n

A function f: R rarr R" satisfies sin x cos y "(f(2x+2y)-f(2x-2y))= cos x sin y (f(2x+2y)+f(2x-2y)). " If "f'(0)=(1)/(2), then

A function f: R rarr R" satisfies sin x cos y "(f(2x+2y)-f(2x-2y))= cos x sin y (f(2x+2y)+f(2x-2y)). " If "f'(0)=(1)/(2), then

A function f: RvecR satisfies sinxcosy(f(2x+2y)-f(2x-2y)=cosxsiny(f(2x+2y)+f(2x-2y))dot If f^(prime)(0)=1/2,t h e n a)f^('')(x)=f(x)=0 b)4f^('')(x)+f(x)=0 c)f^('')(x)+f(x)=0 d)4f^('')(x)-f(x)=0

A function f: R->R satisfies sinxcosy(f(2x+2y)-f(2x-2y)=cosxsiny(f(2x+2y)+f(2x-2y))dot If f^(prime)(0)=1/2,t h e n (a)f^(prime)(x)=f(x)=0 (b)4f^(x)+f(x)=0 (c)f^(x)+f(x)=0 (d)4f^(x)-f(x)=0