A. - 5.0
B. - 8.5
C. - 0.8
D. 5.12
E. A = 3/8 and g = 1.06
a, b, c, d be real numbers in G.P. If u, v,w satisfy the equations u + 2v + 3w = 6; 4u + 5v + 6w = 12; 6u + 9v = 4 then roots of the equations (1/u + 1/v + 1/w)x2 + [(b − c)2 + (c − a)2 + (d − b)2]x + u + v + w = 0 and 20x2 + [10(a − d)2]x − 9 = 0 are
If one root of ax2 + bx + c = 0 is double the other, then a, b, c are related as
A pole has to be erected on the boundary of a circular park of diameter 13 meters in such a way that the difference of its distances from two diametrical opposite fixed gates A and B on the boundary is 7 meters. The distance of the pole from one of the gates is:
If a2 = b4 = c8 = d16, then logd2 (abc)1/3
If r(x) is the remainder obtained by dividing a polynomial p(x) by another polynomial q(x), then
If the cube root of the square root of a number is 5, what is the number?
The L.C.M. of 6x2 – 5x – 6 and 12x2 + 11x + 2 is
What is the minimum value of x for which the expression x3 – 7x2 + 11x – 5 gives positive values
If x2 + 1/x2 = 51 , then the value of x-1/x is
If ( p - q) 2 = ( x – y ) 2, then x =