1. Use double inequalities to show that: |1 6 3* -5 1 3 then xe -86 941 8. i) if 8 礼1 then xe (3 – 4v6),(3 + 4V® ii) if 2 V10 + 2v5), 1 V10 ii) if then xe -15(3+ 2V5). 5 (3-2v 2 1 1 | 1 ... 1/3

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A: Using the definition these symbols we can reach to answer.  K=1 C=2

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A: if x and y are both odd then x+y is even.we have  to write contrapositive statement.

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Q: 5. Use the in verse motrices to find CAB) (AD ond (2A 22 ー1 4 /- 3. B. 11 2. 3. 3. 2. 2- 2. N/-

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Q: (b)Prove the inequality x² + x² + ... + x² n AI 2 xn ( ³²₁ +2²₂ + ... + x n ) ² n

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