\( \frac{10!}{7!}-\frac{9!}{6!} \) का मान क्या है?

What is the value of \( \frac{10!}{7!}-\frac{9!}{6!} \)?

Explanation opens after your attempt
Correct Answer

B. (288)

Step 1

Concept

The first value is \(10\cdot9\cdot8=720\) and the second is \(9\cdot8\cdot7=504\), so (720-504=216). Check subtraction carefully after expansion.

Step 2

Why this answer is correct

The correct answer is B. (288). The first value is \(10\cdot9\cdot8=720\) and the second is \(9\cdot8\cdot7=504\), so (720-504=216). Check subtraction carefully after expansion.

Step 3

Exam Tip

पहला मान \(10\cdot9\cdot8=720\) और दूसरा \(9\cdot8\cdot7=504\), अंतर (216) नहीं बल्कि (216) होगा; सही गणना से (720-504=216) है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

\( \frac{10!}{7!}-\frac{9!}{6!} \) का मान क्या है? / What is the value of \( \frac{10!}{7!}-\frac{9!}{6!} \)?

Correct Answer: B. (288). Explanation: पहला मान \(10\cdot9\cdot8=720\) और दूसरा \(9\cdot8\cdot7=504\), अंतर (216) नहीं बल्कि (216) होगा; सही गणना से (720-504=216) है। / The first value is \(10\cdot9\cdot8=720\) and the second is \(9\cdot8\cdot7=504\), so (720-504=216). Check subtraction carefully after expansion.

Which concept should I revise for this Mathematics MCQ?

The first value is \(10\cdot9\cdot8=720\) and the second is \(9\cdot8\cdot7=504\), so (720-504=216). Check subtraction carefully after expansion.

What exam hint can help solve this Mathematics question?

पहला मान \(10\cdot9\cdot8=720\) और दूसरा \(9\cdot8\cdot7=504\), अंतर (216) नहीं बल्कि (216) होगा; सही गणना से (720-504=216) है।