2) Evaluate 205 x 206 by using suitable identity.
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Answered by
1
Answer:
Your answer is 42230
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Answered by
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Step-by-step explanation:
Hey guys here is your ans..
:
= 205×206
=(200+5) (200+6) [ x^2+ (a+b) x+ ab]
= (200)^2 + (5+6)200 + 5×6
=40000 + 2200+ 30
=42230..ans
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