Waste less time on Facebook — follow Brilliant.
×

Question: algaebra exponent questions a^b

By the definition of exponents:- a^b is the base multiplied by itself the number of times indicated by the power.

You have a question: 2^8^2 and your "correct" solution was 2^64 and the obvious solution of 2^16 was marked as wrong.

In site has a wrong answer published:-

2^8^2 is published as 2^64 which is wrong answer. It may seem logical but it still wrong. I believe that your site should validate all its answers prior to publishing.

The correct answer is 2^16. The trivial problem of 2^3^2 2^3^2 = (2^3)^2 = 8^2 = 64 Do we: add, multiply or eval as powers a complex power: multiple all else is wrong is: 2^3^2 = 2^6 or 2^9

2^3^2 = (2^3) x (2^3) = (2x2x2) x(2x2x2) = (2x2x2 x 2x2x2) = 2^6

pls remember 10x10x10 = 10^3

The additional rule of:- a^(bxc) =a^(cxb) = a^b^c = a^c^b

http://www.math.com/school/subject2/lessons/S2U2L2DP.html

I have been looking at some of your questions and the rigor of some of your solutions is a but dubious on some occassions. On some occassions the question statement needs to be complete and without ambiguity.

Note by Naipaul Ojar
4 months, 4 weeks ago

No vote yet
1 vote

  Easy Math Editor

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold

- bulleted
- list

  • bulleted
  • list

1. numbered
2. list

  1. numbered
  2. list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1

paragraph 2

paragraph 1

paragraph 2

[example link](https://brilliant.org)example link
> This is a quote
This is a quote
    # I indented these lines
    # 4 spaces, and now they show
    # up as a code block.

    print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears as
Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.
2 \times 3 \( 2 \times 3 \)
2^{34} \( 2^{34} \)
a_{i-1} \( a_{i-1} \)
\frac{2}{3} \( \frac{2}{3} \)
\sqrt{2} \( \sqrt{2} \)
\sum_{i=1}^3 \( \sum_{i=1}^3 \)
\sin \theta \( \sin \theta \)
\boxed{123} \( \boxed{123} \)

Comments

Sort by:

Top Newest

No, this is a common misconception. See this article: How are exponent towers evaluated?

Pi Han Goh - 4 months, 4 weeks ago

Log in to reply

×

Problem Loading...

Note Loading...

Set Loading...