Library / /71 of 144
Algebra Difficulty 2.2 Junior Find the answer
What is the value of (−1)3+(−1)2+(−1)?
A number or a short expression. Spacing and $ signs are ignored.
Solution
Since -1 raised to an even exponent equals 1 and -1 raised to an odd exponent equals -1, then (−1)3+(−1)2+(−1)=−1+1−1=−1.
Want a route through all this instead of an archive?
The track
puts 2,000 problems in a working order, from AMC 10 level to the IMO shortlist.
Source: Omni-MATH,
licensed Apache-2.0.
Statement and solution reproduced as published; topic and difficulty added by this site.