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Answer 1

Answer:

3

Step-by-step explanation:

16¼=2,-2

(k¼-1)(k¼+1)=(2-1)(2+1)=1×3=3

or

(k¼-1)(k¼+1)=(-2-1)(-2+1)=(-3)(-1)=3

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Answer 2

Answer:

3

Step-by-step explanation:

(k¼-1)(k¼+1)

(16¼-1)(16¼+1). (a+b)(a-b)= a²-b²

{(16¼)²-1²}

(16)½-1

(4²)½-1

4-1

3

......666......