Question

11. The values of "K" for which the egn
x + 5kx +16 = 0 has no real roots (i.e. has
complex roots) are
a)
b) -3<K <3
5
5
c) 3/2 <K <5 d) None
2. Solutions of the equation V2x+ 2x+4 = 4 are
<K<%
Solstions of the equation 12 + 12x +4 - 4are
a) 6:
c) 0;
d) None
2
A train travels of a distance of 300 km a​

Answer 1

Answer:

Given x , y , z in AP and x^2 , y^2 , z^2 in GP and average of x , y , z is 1/2 and x<y<z find 'z' ?

Step-by-step explanation:

11. The values of "K" for which the egn

x + 5kx +16 = 0 has no real roots (i.e. has

complex roots) are

a)

b) -3<K <3

5

5

c) 3/2 <K <5 d) None

2. Solutions of the equation V2x+ 2x+4 = 4 are

<K<%

Solstions of the equation 12 + 12x +4 - 4are

a) 6:

c) 0;

d) None

2

A train travels of a distance of 300 km a