Question

Plz Give me a correct answer....​

Answer 1

Step-by-step explanation:

1. 103 × 104

103 = (100+3)

104 = (100+4)

Now , (100+3)(100+4) = (100)^2 + (3+4)100 + 3×4

10000 + 700 + 28

= 10728

2. 5.1 × 5.2

5.1 = (5+0.1)

5.2 = (5+0.2)

Now , (5+0.1)(5+0.2) = (5)^2 + (0.1+0.2)5 + 0.1×0.2

= 25 + 1.5 + 0.02

= 26.52

3. 103 × 98

103 = (100+3)

98 = (100+(-2))

Now, (100+3)(100+(-2)) =(100)^2+(3-2)100+3×(-2)

= 10000 + 100 - 6

= 10106

4. 9.7 × 9.8

9.7 = (9+0.7)

9.8 = (9+0.8)

Now, (9+0.7)(9+0.8) = (9)^2 + (0.7+0.8)9+0.7×0.8

= 81 + 13.5 + 0.56

= 95.06

THANK YOU

Answer 2

Answer:

Hii,

Dear Kaise ho ?

How are you ?