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Question

The value of (0.9)2−(0.6)2 is

A

0.54

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B

- 0.54

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C

- 0.45

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D

0.45

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Solution

The correct option is D

0.45


(0.9)2(0.6)2=(0.9+0.6)(0.90.6)
=(1.5)(0.3)
=0.45


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