Mention identity used to evaluate 
yashikatewatia6:
Please tell the identity
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Answered by
1
Answer:
HOPE IT HELPED U :)
Step-by-step explanation:
=31 * 31
=961
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please tell me which identity you have used
IT'S NT IDENTITY
[A]^2 = A*A
OR BELOW THERE IS ANOTHER METHOD TO SOLVE
ok
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Answered by
1
(a+b)^2 = a^2 + b^2 + 2ab
31 = 30+1
Therefore
(30+1)^2
= (30)^2 + (1)^2 + 2(30)(1)
= 900 + 1 + 60
= 961
31 = 30+1
Therefore
(30+1)^2
= (30)^2 + (1)^2 + 2(30)(1)
= 900 + 1 + 60
= 961
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