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Q.

The value of  692 is ____.


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Detailed Solution

The value of 692 is 4761.
Given,
692
We know that,
(x−y) 2 = x 2 + y 2 −2xy  
Break the given number.
(69) 2 = (70−1) 2  
⇒ (70) 2 + (1) 2 −2(70)(1)  
⇒4900+1−140   ⇒4761  
Therefore, the value of 692 is 4761.
 
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