Find the value of `(3^-1 + 4^-1 +5^-1)^0`

Find the value of: (-1)/8-:3/4

Find the value of (1/2)^-2 + (1/3)^-2 + (1/4)^-2

Find the value of x if A= [(3x, 2), (5x,1)] if |A|= 5

Find the value of K if the points A(2, 3) B(4, k) and C(6, -3) are collinear. OR Find the area of a triangle whose vertices are (1, -1) (-4, 6) and (-3, -5)

If the points (7, -2) (5, 1) and (3, k) are collinear. Find the value of k. OR Find the area of Rhombus if its vertices are (3, 0) (4, 5) (-2, -1) taken in order.

Find the value of n such that (""^(n)P_(4))/(""^(n-1)P_(4))=(5)/(3), n gt 4

Find the value of x in which the points (1, -1) (x,1) and (4, 5) are collinear.

Find the value of x in which the points (1,-1) (x,1) and (4,5) are collinear.

Simplify these expressions and find their values if x=3,a=-1,b=-2: 10-3b-4-5b

Find the value of the polynomial at 5x-4x^2+3 at (i) x = 0 (ii) x = - 1 (iii) x = 2