Evaluate (202)^2 using identity
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ʜᴇy ᴜꜱᴇʀ
ʜᴇʀᴇ ɪꜱ yᴏᴜʀ ᴀɴꜱᴡᴇʀ :-
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( 200 - 2 )²
ᴜꜱɪɴɢ ɪᴅᴇɴᴛɪᴛy ( ᴀ - ʙ )² = ᴀ² - 2ᴀʙ + ʙ²
= ( 200 )² - 2 ( 200 )( 2 ) + ( 2 )²
= 40000 - 400 + 4
= 39600 + 4
= 39604 .
ʜᴇʀᴇ ɪꜱ yᴏᴜʀ ᴀɴꜱᴡᴇʀ :-
---------------------------------------------------------
( 200 - 2 )²
ᴜꜱɪɴɢ ɪᴅᴇɴᴛɪᴛy ( ᴀ - ʙ )² = ᴀ² - 2ᴀʙ + ʙ²
= ( 200 )² - 2 ( 200 )( 2 ) + ( 2 )²
= 40000 - 400 + 4
= 39600 + 4
= 39604 .
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