Use mathematical induction to show that (a) 1 + 4 +7 + +(3n -2) = n (3n - 1)/2 for n is the element of natural numbers, n is greater than or equal to 1.(

Step-by-step explanation:

      TRUE

We replace the first part of the equation with our value for n=k:

we develop both sides of the equation to verify equality:

      TRUE

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)