When comparing exponential expressions, students often fall into the 'power tower trap' by assuming taller towers yield larger values; however, the correct approach is to convert expressions to the same base and evaluate power towers from top to bottom, as demonstrated by comparing 9^99 (which equals 3^198) with 3^(3^3) (which equals 3^27), showing that 9^99 is actually greater.
深度探索
先修知识
- 暂无数据。
后续步骤
- 暂无数据。
深度探索
The Exponent "Power Tower" Trap Explained !本站添加:
Most students get this exponent problem wrong because they fall for the tower trap. Now, let's find which number is actually bigger. Our first task is to make the bases the same so we can compare them. Since 9 is just 3 squared, we can rewrite as 3 squared to the 99th power.
Using the power rule, multiply those exponents.
2 * 99 gives 198.
So, we have 3 raised to the power of 198.
>> [bell] >> Now, look at the power tower and remember exponent towers are solved from top to bottom.
So, first solve 3 cubed, which equals 27.
So, this will be 3 to the power of 27.
So, we are comparing 3 to the 198 versus 3 to the 27.
Hence, 9 to the 99 is greater.
相关推荐
A Number Plus 5 Is 12
MathGirlTutor
101 views•2026-06-03
Olympiad Mathematics | Indian | Can You Solve This One?
PhilCoolMath
650 views•2026-06-03
H2 Math June Holiday 2026 Intensive Revision | H2 Math Tuition by Achevas #singaporemath #h2math
AchevasTV
304 views•2026-06-01
Escaping the Fog
LogicLemurGaming
760 views•2026-06-03
slick TMUA geometry!
JPiMaths
109 views•2026-06-04
Edexcel IAL S2 Statistics June 2025 - Complete Paper Walkthrough | WST02/01
Math_Mind_1
140 views•2026-06-03
A Brutal Radical Expression Made Easy! The Shortcut Changes Everything.
tamoshop
112 views•2026-06-02
Is This Pentomino Tileable?
3cycle
241 views•2026-05-30











