(160)^2 - (161)^2 = Choose the correct choice from the following choices: A) 1 B) 100 C) 229 D) 323 E) 349
Using the formula:   (a+1)^2 - a^2 = 2a+1   So, Answer = 161*2 + 1   = 322+1= 
<gadget id="calculator">322+1</gadget>
<output>323</output>
323= Answer = 323
<result>D</result>
(160)^2 - (161)^2 =