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find the exact value of the following expression. \\(\\binom{8}{1}\\)

Question

find the exact value of the following expression.
\\(\binom{8}{1}\\)

Explanation:

Response

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Binomial Theorem"
],
"new_concepts": [
"Binomial Coefficient"
],
"current_concepts": [
"Binomial Theorem",
"Binomial Coefficient"
]
}
</pre_analysis>

<reasoning>

State the binomial coefficient formula

\[
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\]

Substitute the given values

\[

$$\begin{aligned} n &= 8 \\ k &= 1 \end{aligned}$$

\]

Calculate the exact value

\[
\binom{8}{1} = \frac{8!}{1!(8-1)!} = \frac{8!}{1! \cdot 7!} = 8
\]
</reasoning>

<answer>
8
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Free Response",
"knowledge_point": [
"Mathematics",
"Algebra",
"Binomial Coefficient"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Binomial Theorem"
],
"new_concepts": [
"Binomial Coefficient"
],
"current_concepts": [
"Binomial Theorem",
"Binomial Coefficient"
]
}
</pre_analysis>

<reasoning>

State the binomial coefficient formula

\[
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\]

Substitute the given values

\[

$$\begin{aligned} n &= 8 \\ k &= 1 \end{aligned}$$

\]

Calculate the exact value

\[
\binom{8}{1} = \frac{8!}{1!(8-1)!} = \frac{8!}{1! \cdot 7!} = 8
\]
</reasoning>

<answer>
8
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Free Response",
"knowledge_point": [
"Mathematics",
"Algebra",
"Binomial Coefficient"
]
}
</post_analysis>