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201f02mt1[1]

# 201f02mt1[1] - (b Find the matrix K which only adds ﬁve...

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Unformatted text preview: (b) Find the matrix K which only adds ﬁve times the third row of A to the ﬁrst row of A when KA 18 considered. (.0 5 K: o l 0 x O O l (e) Let B: ATA. Find the inverse of B if it exists. 8 WW1] [‘2 i “J n\/ '(L Fwd/1(6) :2 (2 P1Wf\$)/ I_ 4/74; [:3 11‘],5 PIE? 5W” _} l 5—7.]. B T- 21 ~1to MATH 201 ' FIRST MIDTERM Mil/1 WN€5eiiige§ui1s%99§bf 174%951l311991x B isknowntobea 3W - Wei". 25 f R5 .Fmd the rank of B. Justify your ans , H. i / su§§qce1§;3-wuji,£(83~ 3 111. /25 IV. /25 Sisal (mini: ' /100 SIGNATURE: ............................. Please write your name at the top of each "PAGE - -b£‘saécfalamm1dxdhmr§rﬁ ljiageg 111 ink) Label all answers clearly and Elgéllo‘ ____________ I. Find the ranléseki kﬁhescogffciengt and the augmented matrices of the syste 2u+ i+§wQ 42,3 VIII. Gi Othatgf 3v w=15,5 6V W:— O 30"} Lek andeef'e QwhEthi i syst 5'4. Myst—ck I Siéxis dclops—ig terﬁnd lsoluti s. 0 77% @by v,v W betEE SEEN £411 Mil-1113a sill-ﬁghic ﬁi‘l‘gﬂl Hwy} LE2 Amity—l [(—12 giilé 0‘ 3%] I; REP»! A m v+6wl=1l3&] 4. - 0 O 1 1 1111119591 5W: - La— am (112 \$6 til—1&4 £;{%A a 1-12; ' . “WK/Pb ) {N 2 ~7. (B_ - . ...
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