GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

 It is currently 28 Jan 2020, 15:35 ### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  # If m and n are integers, then what is the value of (–1)^m + (–1)^n +

Author Message
TAGS:

### Hide Tags

Math Expert V
Joined: 02 Sep 2009
Posts: 60727
If m and n are integers, then what is the value of (–1)^m + (–1)^n +  [#permalink]

### Show Tags 00:00

Difficulty:   75% (hard)

Question Stats: 37% (01:46) correct 63% (01:15) wrong based on 33 sessions

### HideShow timer Statistics

If m and n are integers, then what is the value of $$(–1)^m + (–1)^n + (–1)^m*(–1)^n$$ ?

(1) $$m = 23522101$$

(2) $$n = 63522251$$

Are You Up For the Challenge: 700 Level Questions

_________________
Math Expert V
Joined: 02 Aug 2009
Posts: 8327
Re: If m and n are integers, then what is the value of (–1)^m + (–1)^n +  [#permalink]

### Show Tags

If m and n are integers, then what is the value of $$(–1)^m + (–1)^n + (–1)^m*(–1)^n$$ ?

(1) $$m = 23522101$$
so m is ODD....
(-1)^m=-1...$$(–1)^m + (–1)^n + (–1)^m*(–1)^n$$ =$$–1 + (–1)^n –1*(–1)^n$$
If n is odd...-1-1-1*-1=-2+1=-1
If n is even...-1+1-1*1=-1
So -1 always...Suff

(2) $$n = 63522251$$
so n is ODD....
(-1)^n=-1...$$(–1)^m + (–1)^n + (–1)^m*(–1)^n$$ =$$–1 + (–1)^m –1*(–1)^m$$
If m is odd...-1-1-1*-1=-2+1=-1
If m is even...-1+1-1*1=-1
So -1 always...Suff

D
_________________ Re: If m and n are integers, then what is the value of (–1)^m + (–1)^n +   [#permalink] 04 Nov 2019, 05:44
Display posts from previous: Sort by

# If m and n are integers, then what is the value of (–1)^m + (–1)^n +  