The equation of the locus of a point which moves such that its difference of distances from the points (3,0) and (-3,0) is
4 units, is given by:
1). $\frac{x^{2}}{5}-\frac{y^{2}}{6}=1$
2). $\frac{x^{2}}{4}-\frac{y^{2}}{5}=1$
3). $\frac{x^{2}}{5}+\frac{y^{2}}{6}=1$
4). $\frac{x^{2}}{4}+\frac{y^{2}}{5}=1$
The median of the numbers 20,18, 22, 27, 25, 12, 15 is:
1). 20
2). 22
3). 19.8
4). 19.9
The solutions of the linear congruence $7x\equiv22$ (mod 31) is :
1). $x\equiv21$( mod 31)
2). $x\equiv12$( mod 31)
3). $x\equiv196$
4). $x\equiv12$( mod 21)
When $2^{2000}$ is divided by 17. then the remainder is:
1). 9
2). 2
3). 5
4). 1
If the two sides of a triangle are the roots of the equation $4x^{2}-(2\sqrt{6})x+1=0$ and they include an angle is 60°, then
third side of the triangle is:
1). $\sqrt{3}$
2). $\frac{1}{2}$
3). $\frac{\sqrt{3}}{2}$
4). $\frac{2}{\sqrt{3}}$