Question

Calculate the value of 7^2

Answer 1

Answer:

Given,

1960=2

a

.5

b

.7

c

Now,

1960=2×2×2×5×7×7=2

3

.5

1

.7

2

Thus, comparing the above two, we get

a=3, b=1, c=2,

Now,

2

−a

.7

b

.5

−c

=2

−3

.7

1

.5

−2

=

8

1

.7.

25

1

=

200

7