Choose an alternative,the best completes the statement. Justify your answer analytically. For the positive integer m, (root5+1)^2m -(root5-1)^2m is:-a. irrational number b. odd positive number c. even positive number d. rational no. other than positive integers.
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4 is answer
Step-by-step explanation:
2√5+2-2√5+2=2+2=4
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