Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.1 + 4 + 42 + ... + 4n - 1 = 

What will be an ideal response?


First, we show that the statement is true when n = 1.
For n = 1, we get 1 (or 4[(1) - 1]) =  =  = 1.
This is a true statement and Condition I is satisfied.

Next, we assume the statement holds for some k. That is,
  is true for some positive integer k.
We need to show that the statement holds for . That is, we need to show that
 
So we assume that  is true and add the next term, 4k, to both sides of the equation.


Condition II is satisfied. As a result, the statement is true for all natural numbers n.

Mathematics

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A value of sinh x or cosh x is given. Use the definitions and the identity  to find the value of the other indicated hyperbolic function.sinh x = , coth x =

A.  
B.  
C.  
D.  

Mathematics

Write the English phrase as an algebraic expression. Let the variable x represent the number.Twice a number, increased by 79

A. 2x - 79 B. 2x + 79 C. 2(x + 79) D. x + 79

Mathematics