If `x^(2)=0.4,` then `x` is a :

If x^(2)+6x-27>0;-x^(2)+3x+4>0 then x lies in the interval

If the trace of the matrix A= [{:( x-1 ,0,2,5),( 3, x^(2) - 2 ,4,1),( -1,-2,x-3,1),(2,0,4,x^(2)-6) :}] is 0 then x is equal to

x^2+x-4=0 , the value of x is

If alpha,beta are the roots of x^(2)+2x+5= (then the equation whose roots are (alpha+1)/(alpha),(beta+1)/(beta) is (A) 5x^(2)-9x+4=0 (B) 5x^(2)-8x+4=0 (C) 5x^(2)-10x+4=0 (D) 5x^(2)+9x+4=0

If 7 sin ^(2) x + 3 cos ^(2) x =4, 0 lt x lt 90^(@), then what is the value of tan x ?

" If the trace of the matrix: "A=[[-1,0,2,5],[3,x^(2)-2,4,1],[-1,-2,x-3,1],[2,0,4,x^(2)-6]]" is "0" then "x" is equal to "

If f(x)={{:(2+x",", x ge0),(4-x",", x lt 0):}, then f (f(x)) is given by :

If f(x)={{:(x-2",","for "x ge0),((x^(2))/(4)-2","," for "x lt0):} , then find area bounded by y=|f(x)| and x - axis.