1. k is integer and negative. Which one is the highest number(a) 5 + k(b) 5k(c) 5 – k(d) 5^k.2. 16^100 : 2 is equal to:(a) 8^99(b) 8^100(c) 16^50(d) 2^3993. A and B are two real numbers. The following expressions are true or false?(a) If A = 2 then A^2 = 4(b) If A^2 = 4 then A = 2(c) If AB = 0 allora A = 0(d) If A = 0 then A.B = 0

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1. k is integer and negative. Which one is the highest number (a) 5 + k (b) 5k (c) 5 – k (d) 5^k. 2. 16^100 : 2 is equal to: (a) 8^99 (b) 8^100 (c) 16^50 (d) 2^399 3. A and B are two real number

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