Question

using suitable identities evaluate 49^2​

Answer 1

Answer:

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Explanation:

Using (a−b)

2

= a

2

−2ab+b

2

to calculate the value of (49)

2

We can write (49)

2

as (50−1)

2

(50−1)

2

=50

2

−2×50×1+1

2

= 2500−100+1

The answer is 2401