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2 . a b с d 3х a р 9 7 Let det S 9 and C= u - 4x -p 2v-8y -29 K-41 -S x 6y 26 3t d y 7 2 are given. N 21 ין w k W - 42 -1 32

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hiven; det a b P 9 y oln 2 r s z t u V W K 3a ca u- 4x 2v-dy kadt - 29 by ab 3t d - r W- 92 с N To find! det (30-1) 2 Solni LC - 2 -P -2 U-axton V - dy+3y K-4t+3+ W-42 +32 Зи 34 3t b d с a C - 2 U-x V-4 b ! ( [ 30 3 y 3t 32 ol W- 2 Taking factor of 3T СА b с d - S + - 9 y 1 2 u V k - a + 2 Taking (-) sign from R2 we get b ol с CT = (-6) P 1 S r X y u V K operating - Ca we

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