If D,E and F are the mid points of BC, CA and AB respectively of the $\triangle ABC$ then the ratio of area of the parallelogram DEFB and area of the trapezium CAFD is
1). 2:3
2). 3:4
3). 1:2
4). 1:3
1. If a3 - b3 = 56 and a - b = 2 then what is the value of a2 + b2?
4. The simplified form of $(x + 3)^{2}$ + $(x - 1)^{2}$ is
5. If $a^{3} + b^{3}$ = 28 and a + b = 4, then what is the value of ab?
6. If x+3y= -3x+y, then is $\frac{x^{2}}{2y^{2}}$ equal to
7. If (a + b)2 = 21 + c2, (b + c)2 = 32 + a2 and (c + a)2 = 28 + b2 , find a + b + c = ?
8. If $x^{2}+ y^{2} + z^{2}$ = xy + yz + zx, then what is the value of $\frac{(7x + 3y - 5z)}{5x}$?
9. Value of \(\sqrt {6 + \sqrt {6 + \sqrt {6 + \ldots ..} } } \;is\)