Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-20" was replaced by "^(-20)".

(2): "0.2" was replaced by "(2/10)".

Step  1  :

 1.1     10 = 2•5

(10)^-20 = (2•5)^(-20) = (2)^(-20) • (5)^(-20)

Equation at the end of step  1  :

   2
  —— • ((2)(-20)•(5)(-20))
  10

Step  2  :

            1
 Simplify   —
            5

Equation at the end of step  2  :

  1
  — • ((2)(-20)•(5)(-20))
  5

Step  3  :

Multiplying exponents :

 3.1    5¹  multiplied by  5²⁰   = 5^{(1 + 20)} = 5²¹

Final result :

      1                                       
  ————————— = 2.00000 • 10-21 
  (521•220)