Question

PLZ TELL THE CORRECT ANSWER​

Answer 1

Answer:

71

2

,

i.e. 71

2

=(70+1)

2

.

We know,

(x+y)

2

=x

2

+y

2

+2xy.

Then,

71

2

=(70+1)

2

=70

2

+(2×70×1)+1

2

=4900+140+1

=5040+1

=5041.

Hence, 71

2

=5041.