A) \[\frac{841}{41}\]
B) 0
C) 1
D) \[\frac{41}{841}\]
Correct Answer: D
Solution :
(d): \[AC=\sqrt{{{20}^{2}}+{{21}^{2}}}=\sqrt{841}\] \[=\frac{{{(21)}^{2}}}{841}-\frac{{{(20)}^{2}}}{841}\] \[=\frac{41}{841}\]You need to login to perform this action.
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