Question

educe the quadratic form xỉ + 2x– 7x3
d then find its index and signature. W
4x1x2 + 8x2X3​

Answer 1

Answer:

Note that we split the contribution −4x1x2 ... A x for a symmetric n × n matrix A. Example 2 Consider the quadratic form ... eigenbasis for A, with associated eigenvalues λ1,...,λn. Then q( x) = λ1c. 2. 1 ... P−1AP = D. 3 ...