In which pairs of matrices does AB = BA?
A = [ 22 ]B=[2]
A=[-1 %]B =[-3]
A =[-12]B=[52]...
Mathematics, 07.06.2020 00:04 english7750
In which pairs of matrices does AB = BA?
A = [ 22 ]B=[2]
A=[-1 %]B =[-3]
A =[-12]B=[52]
A = [ 2 ]B =[8-%3]
Answer from: Quest
t = 3
step-by-step explanation:
put t = 3 in this expression :
(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680
Answer from: Quest
answer: 34rtyj,jkhtyetwrhyjeuiejnbhdfknbkguxfrbhkfdbjvkmbd,kvbsd.kxjvbhjnfbgjxdfn
step-by-step explanation:
Answer from: Quest
christopher is 272,195 year old
step-by-step explanation:
Answer from: Quest
we have three similar triangles, because each has a right angle and shares an angle. let's write the angles in order: opposite to short leg, long leg, hypotenuse.
cab similar to bad similar to cbd
or as ratios,
ca: ab: cb = ba: ad: bd = cb: bd: cd
we also know
ac = ad + cd
(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd
(ad+cd)/cb=cb/cd
we have cb=6, ad=5 and seek x=cd.
we reject the negative root and conclude x=4
answer: 4
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