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Exercise 1.1 (Solutions)

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e 1.1: Textbook of Algebra and Trigonometry Class XI (Mathematics FSc Part 1 or HSSC-I), Punjab Textbo... **Property:** Right distributive property. ---- (xi) $4 \times (5 \times 8)= (4 \times 5)\times 8$ *... :** Associative property w.r.t. '$\times$'. ---- (xii) $a(b+c-d)= ab+ac-ad$ **Property:** Left distr... e 1.1: Textbook of Algebra and Trigonometry Class XI.\\ Punjab Textbook Board, Lahore - PAKISTAN. \\ [

Exercise 1.2 (Solutions)

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e 1.2: Textbook of Algebra and Trigonometry Class XI (Mathematics FSc Part 1 or HSSC-I), Punjab Textbo... ber\] - Additive Identity \[z+0=z\nonumber \] - Existence of Additive Inverse \[\begin{array}{l} \mbox{For each} \; z\in \mathbb{C}, \mbox{there exists}\; -z\in \mathbb{C} \mbox{ such that}\; z+\lef