QUESTION IMAGE
Question
in how many ways can the letters in the word glacier be arranged?
\\_np_r = \frac{n!}{(n-r)!}\\
\\0! = 1\\
<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Factorial Notation"
],
"new_concepts": [
"Permutations"
],
"current_concepts": [
"Factorial Notation",
"Permutations"
]
}
</pre_analysis>
<reasoning>
Identify the number of unique letters
\[
\text{Word: GLACIER} \implies \{G, L, A, C, I, E, R\} \implies n = 7
\]
Apply the permutation formula
\[
P = 7!
\]
Calculate the final value
\[
7! = 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1 = 5040
\]
</reasoning>
<answer>
5040
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Free Response",
"knowledge_point": [
"Mathematics",
"Algebra",
"Permutations"
]
}
</post_analysis>
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<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Factorial Notation"
],
"new_concepts": [
"Permutations"
],
"current_concepts": [
"Factorial Notation",
"Permutations"
]
}
</pre_analysis>
<reasoning>
Identify the number of unique letters
\[
\text{Word: GLACIER} \implies \{G, L, A, C, I, E, R\} \implies n = 7
\]
Apply the permutation formula
\[
P = 7!
\]
Calculate the final value
\[
7! = 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1 = 5040
\]
</reasoning>
<answer>
5040
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Free Response",
"knowledge_point": [
"Mathematics",
"Algebra",
"Permutations"
]
}
</post_analysis>