2. How many of the following statements are correct? I. -4 is a rational number II. is an integer 1 III. O is a rational number IV. is an irrational number -

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.2: Mathematical Induction
Problem 50E: Show that if the statement 1+2+3+...+n=n(n+1)2+2 is assumed to be true for n=k, the same equation...
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question 2,3,4 and 5

2. How many of the following statements are correct?
I.
-4 is a rational number
II.
is an integer
1
III.
O is a rational number
1
IV.
-- is an irrational number
3. Simplify the following:
3 1
1
--
4' 6
4. Perform the indicated operations and simplify.
Зу (4у3 + 2у2 — Зу) - 2(4у3 + 2у? - Зу)
5. Perform the indicated operations and simplify.
(и — 1)(и? + Зи - 2)
Transcribed Image Text:2. How many of the following statements are correct? I. -4 is a rational number II. is an integer 1 III. O is a rational number 1 IV. -- is an irrational number 3. Simplify the following: 3 1 1 -- 4' 6 4. Perform the indicated operations and simplify. Зу (4у3 + 2у2 — Зу) - 2(4у3 + 2у? - Зу) 5. Perform the indicated operations and simplify. (и — 1)(и? + Зи - 2)
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