One of the principal solutions of sqrt(3) sec x=-2 is equal to
The term independent of x in the expansion of (x^(2) - 1/(3x))^(9) is equal to
int_(1)^(2)x^(2)dx is equal to
int_(1)^(2)(dx)/(x^(2)) is equal to
If the equation 2^((2pi)/cos^(-1)x)-(a+1/2)2^((pi)/cos^(-1)x-a^2=0 has exactly one real solution the range of a is equal to
The solution of the differential equation {1+xsqrt((x^2+y^2))}dx+{sqrt((x^2+y^2))-1}ydy=0 is equal to
The solution set |x-2| lt |2x-1| is
Let a,b be the solutions of x^(2)+px+1=0 and c, d be the solutions of x^(2)+qx+1=0 . If (a-c)(b-c) and (a+d)(b+d) are the solutions of x^(2)+ax+beta=0 , then beta equals
