## Giải nhanh hộ mk ạ, chi tiết nha

Question

Giải nhanh hộ mk ạ, chi tiết nha

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4 years 2020-11-03T22:11:02+00:00 1 Answers 81 views 0

$\begin{array}{l} {3^{2020}} + {3^{2019}} – {3^{2018}}\\ = {3^{2018 + 2}} + {3^{2018 + 1}} – {3^{2018}}\\ = {3^{2018}}{.3^2} + {3^{2018}}.3 – {3^{2018}}\\ = {3^{2018}}\left( {{3^2} + 3 – 1} \right)\\ = {3^{2018}}.11 \vdots 11\\ Vay\,\left( {{3^{2020}} + {3^{2019}} – {3^{2018}}} \right) \vdots 11 \end{array}$
The text contains a mathematical question and its solution. The question is about proving that a specific expression is divisible by 11, and the solution is provided in detail.
single_question_with_answer
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
## Giải nhanh hộ mk ạ, chi tiết nha

Question

Giải nhanh hộ mk ạ, chi tiết nha

in progress 0
4 years 2020-11-03T22:11:02+00:00 1 Answers 81 views 0

$\begin{array}{l} {3^{2020}} + {3^{2019}} – {3^{2018}}\\ = {3^{2018 + 2}} + {3^{2018 + 1}} – {3^{2018}}\\ = {3^{2018}}{.3^2} + {3^{2018}}.3 – {3^{2018}}\\ = {3^{2018}}\left( {{3^2} + 3 – 1} \right)\\ = {3^{2018}}.11 \vdots 11\\ Vay\,\left( {{3^{2020}} + {3^{2019}} – {3^{2018}}} \right) \vdots 11 \end{array}$
user
The text contains a mathematical question and its solution. The question is about proving that a specific expression is divisible by 11, and the solution is provided in detail.

TYPE: SINGLE_QUESTION_WITH_ANSWER