1 1 8. If A= ,then A( where k is any integer number) is 0 1 [ k (a) A = 0 k 1 k (b) A = k k (c) A = (d) A = (e) none 0 1 Q9. The condition on a such that the function f(x. v) =r +2oxy +16v?is nositive semi deinite cxcent at noint

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Q7.If AB similar to BA, then
(a) B may be invertible or not invertible ((b))A and B must be invertible matrices
(c) A or Bmust be invertible matrix (d) AB can not be similar to BA under any condition (e) none
8. If A=
then A(where k is any integer number) is
[1 k
k k
(c) A =
(a) A =
(b) A =
(d) A =
(e) none
Q9. The condition on a such that the function f(x, y) xr +2axy+16y is positive semi definite except at point (0,0) is
(a) a24 (b) 0 < as4
(c) a > -4
(d) – 4 <a < 4 (e) – 4 sas4 (c) none
Transcribed Image Text:Q7.If AB similar to BA, then (a) B may be invertible or not invertible ((b))A and B must be invertible matrices (c) A or Bmust be invertible matrix (d) AB can not be similar to BA under any condition (e) none 8. If A= then A(where k is any integer number) is [1 k k k (c) A = (a) A = (b) A = (d) A = (e) none Q9. The condition on a such that the function f(x, y) xr +2axy+16y is positive semi definite except at point (0,0) is (a) a24 (b) 0 < as4 (c) a > -4 (d) – 4 <a < 4 (e) – 4 sas4 (c) none
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