If `ax+by+c=0` is a normal to hyperbola `xy=1`, then (A) `alt0, blt0` (B) `alt0, bgt0` (C) `agt0, bgt0` (D) `agt0, blt0`

If the line ax+by+c=0 is normal to the curve xy+5=0 , then

If the line ax+by+c=0 is normal to the xy+5=0 , then a and b have

If the line ax + by + c =0 is a normal to the curve xy+1=0 ,then 1) ab 2) ab=0 3) ab>0 d) ab=-3

If the line ax+by+c=0 is a normal to the curve xy=1, then a>0,b>0a>0,b<0a(:0,b:)0(d)a<0,b<0 none of these

The direction cosines of any normal to the xy-plane are (A) 1,0,0 (B) 0,1,0 (C) 1,1,0 (D) 0,01

If the line with equestion x+y=6 is a normal to the parabola y^(2)=8x at point (a,b), bgt0 then a/b is equal to

Figure 2.23 shows the graph of the polynomial f(x)=a x^2+b x+c for which (FIGURE) (a) a<<0, b>>0 a n d c >0 (b) a<0, blt0 and cgt0 (c) a<0, b<0 a n d c<0 (d) a >0, b >0 a n d c<0

Graph of Quadratic funtion f(x)=ax^2+bx+c for different cases (i) If agt0 and Dlt0 (ii) alt0 and Dlt0 (iii)agt0 and D=0 (iv) agt0 and Dgt0 (v) alt0 and D=0 (vi) alt0 and Dgt0

If a=int_(1/2)^2 1/x cot^7(x-1/x)dx , then (A) a=0 (B) 0ltalt1 (C) agt0 (D) none of these