Find the value of `x` if i) `|[x^(2)-x+1,x+1],[x+1,x+1]|=0`

Find the integral value of x , if |[x^2,x,1],[ 0, 2, 1],[ 3, 1, 4]|=28 .

Find the value of x, if a+1=0 and x^(2)+ax-6=0 .

Find the value of x [[x,x-1],[x-1,x]]=0

Find the values of x if the points (2x, 2x), (3, 2x + 1) and (1, 0) are collinear.

Find the values of aa n db if f(x)={a x^2+1,xlt=1 ,x^2+a x+b ,x >1"i s differentiable at"x=1

Find the value of int_0^1 2x^3-3x^2-x+1 3dxdot

Find the value of x such that [(1,x,1)][(1, 3, 2),( 2, 5, 1), (15, 3, 2)][(1),( 2),(x)]=0

Find the value of x, if [1x1][{:(1,3,2),(2,5,1),(15,3,2):}][{:(1),(2),(x):}]=0

Find the value of lim_(x->0)(1/sinx-1/x)

If |[1, x, x^2], [x, x^2, 1], [x^2, 1, x]|=3, then find the value of |[x^3-1, 0, x-x^4], [0, x-x^4, x^3-1], [x-x^4, x^3-1, 0]|