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  1. Simplification of  
    (3.4567)2 − (3.4533)2
    		   yields the result :
    0.0034
    1. 6.91
    2. 7
    3. 6.81
    4. 7.1
Correct Option: A

? =
(3.4567 + 3.4533)(3.4567 − 3.4533)
0.0034

=
6.9100 × 0.0034
 = 6.91
0.0034

Second Method :
(3.4567 + 3.4533)(3.4567 − 3.4533)
0.0034

3.45672 − 3.45332
(3.4567 − 3.4533)

= 3.4567 + 3.4533 = 6.91


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