Question

Plzzz ans for this..............................

Answer 1

Given numbers,

9.11 × 10⁻³¹ and 1.67 × 10⁻²⁷

We suppose to add them.

For adding them make the powers of both the number same, so that we can make them common while adding.

∴  9.11 × 10⁻³¹  + 1.67 × 10⁻²⁷

= 9.11 × 10⁻²⁷⁻⁴ +  1.67 × 10⁻²⁷

= 9.11 × 10⁻²⁷ × 10⁻⁴ +  1.67 × 10⁻²⁷

= 10⁻²⁷ (9.11 × 10⁻⁴ +  1.67)

= 10⁻²⁷ (0.000911 + 1.67)

= 1.670911 ×  10⁻²⁷  

This will be the Required result for this calculation.

Hope it helps.