Let A = (aij) ∈ M atK (n). A Tracef Definition is Tr(A) = a11 + a22 + · · · + ann (cross number of ads). a) Prove that PA(λ) = det(A − λI) = (−1) n (λ) n- Tr(A) n − 1 + · · · + (- 1) n det A). b) Prove det (P −1AP - λI) = PA(λ), for every P match. c) Prove Tr(A) = Tr(P −1AP), with every inverse matrix P. d) Suppose 1, · · ·, n K, are eigenvalues ​​of A. Calculate Tr(A) and det A through that private value

Hi i am bad at math

Step-by-step explanation:

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.