If `f(x)=x^(3)+bx^(2)+cx+dand 0 ltb^(2)ltc,` then in `(-oo,oo)`

If F(x)=x^(3)+bx^(2)+cx+dand0ltb^(2)ltc , then in (-oo,oo)

If f(x)=x^(3)+bx^(2)+cx+d and 0 lt b^(2) lt c , then in (-oo, oo), f(x) :

If f(x) = x^(3) + bx^(2) + cx + d and 0 lt b^(2) lt c , then in (-oo, oo) , a)f(x) is a strictly increasing function b)f(x) has local maxima c)f(x) is a strictly decreasing function d)f(x) is bounded

If f(x)=x^3+bx^3+cx+d and 0 lt b^2 lt c "then in" (-oo,oo)

If f(x)=x^3+bx^2+cx+d and 0ltb^2ltc then in (-oo,oo)

If (x)=x^(3)+bx^(2)+cx+d and 0

If f(x)={x^3,if x^2 =1 then f(x) is differentiable at (a) (-oo,oo)-{1} (b) (-oo,oo)-{1,-1} (c) (-oo,oo)-{1,-1,0} (d) (-oo,oo)-{-1}