Math, asked by subhankardas79, 3 months ago

plz solve this by using identities

81²

Answers

Answered by meghspatel

0

Answer:

6400+160+1

6561

Step-by-step explanation:

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Answered by ramesh4629

0

Answer:

81²=(80+1)². (a+b)²=a²+b²+2ab

80²+1²+2×80×1

6400+1+160

6561//-

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