Question

Using appropriate identity. Evaluate (0.99) * (1.01)

Answer 1

Answer:

(0.99)*(1.01)

= (1 - 0.01)*(1 + 0.01)

so (a+b)(a-b) = a^2 - b^2

= 1^2 - 0.01^2

= 1 - 0.0001

= 0.9999

Hope I could help!

Answer 2

Answer:

(0.99)*(1.01)

= (1 - 0.01)*(1 + 0.01)

so (a+b)(a-b) = a^2 - b^2

= 1^2 - 0.01^2

= 1 - 0.0001

= 0.9999

hope it helps u