[" If "f(x)=|x-a|+|x+b|,x in R,b>n>0," then "],[[" a) "f'(a+)=1," b) "f'(n+)=0," c) "f'(-b+)=0," d) "f'(-b+)=1]]

7. If f(x)=|x-a|+|x + b| , x in R,b>a>0 . Then (1) f'(a^+)=1 (2) f'(a^+)=0 (3) f'(-b^ +) = 0 (4) f(-b^+)=1

If f(x)=|[0,x-a, x-b], [x+a,0,x-c], [x+b, x+c,0]|,t h e n (a) f(a)=0 (b) f(b)=0 (c) f(0)=0 (d) f(1)=0

If f(x)=|0x-a x-b x+a0x-c x+b x+c0|,t h e n f(x)=0 (b) f(b)=0 (c) f(0)=0 f(1)=0

If f(x)=|0x-a x-b x+a0x-c x+b x+c0|,t h e n f(x)=0 (b) f(b)=0 (c) f(0)=0 f(1)=0

[" Let "f(x+y)=f(x)+f(y)" for all "],[x,y in R" .Then "],[" (A) "f(x)" is an even function "],[" (B) "f(x)" is an odd function "],[" (C) "f(0)=0],[" (D) "f(n)=nf(1),n in N]

If f(x) = |(0, x-a, x-b),(x+a, 0, x-c),(x+b, x+c, 0)| , then the value of f(0) is :

If f(x)=|(0, x-a, x-b), (x+a, 0, x-c),(x+b, x+c, 0)| , then

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''(x)=f(x)=0 (b) 4f''(x)+f(x)=0 (c) f''(x)+f(x)=0 (d) 4f''(x)-f(x)=0