# Give an example using numbers that show that the formula is not valid.

### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

#### Solutions

Chapter 1.4, Problem 105E
To determine

## Give an example using numbers that show that the formula is not valid.

Expert Solution

12+1212+2 ; (2+3)22+32 ; 32+423+4 ; (33+53)133+5 ; 2622262 ; 16121162 .

### Explanation of Solution

Calculation:

Here, we have:

1a+1b1a+b With a=b=2 . So, we get:

12+1212+2

Now, we have:

(a+b)2a2+b2 With a=2,b=3 . So, we get:

(2+3)22+32

Now, we have:

a2+b2a+b With a=3,b=4 . So, we get:

32+423+4

Now, we have:

(a3+b3)13a+b With a=3,b=5 . So, we get:

(33+53)133+5

Now, we have:

amanamn With a=2,m=6,n=2 . So, we get:

2622262

Now, we have:

a1n1an With a=16,n=2 . So, we get:

16121162

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