Pascal's Triangle

Description: Pascal's Triangle is a triangular array of binomial coefficients. It is named after the French mathematician Blaise Pascal, who first described it in 1654. The triangle is constructed by starting with a 1 at the top and then adding the two numbers above each number to get the number below it. This process is repeated until the desired number of rows is reached.
Number of Questions: 15
Created by:
Tags: pascal's triangle binomial coefficients combinatorics
Attempted 0/15 Correct 0 Score 0

What is the value of the entry in the 5th row and 3rd column of Pascal's Triangle?

  1. 10

  2. 20

  3. 30

  4. 40


Correct Option: A
Explanation:

The entry in the 5th row and 3rd column of Pascal's Triangle is calculated by adding the two numbers above it, which are 4 and 6. Therefore, the value of the entry is 4 + 6 = 10.

Which row of Pascal's Triangle contains the coefficients of the expansion of (x + y)^6?

  1. 6th row

  2. 7th row

  3. 8th row

  4. 9th row


Correct Option: B
Explanation:

The coefficients of the expansion of (x + y)^n are given by the entries in the (n + 1)th row of Pascal's Triangle. Therefore, the coefficients of the expansion of (x + y)^6 are given by the entries in the 7th row of Pascal's Triangle.

What is the sum of the entries in the first 10 rows of Pascal's Triangle?

  1. 1023

  2. 1024

  3. 2047

  4. 2048


Correct Option: C
Explanation:

The sum of the entries in the first 10 rows of Pascal's Triangle is equal to 2^10 - 1 = 2047.

What is the generating function for Pascal's Triangle?

  1. (1 + x)^n

  2. (1 - x)^n

  3. (1 + x)^-n

  4. (1 - x)^-n


Correct Option: A
Explanation:

The generating function for Pascal's Triangle is (1 + x)^n, where n is the number of rows in the triangle.

What is the relationship between Pascal's Triangle and the Fibonacci sequence?

  1. The Fibonacci sequence is the sum of the entries in each row of Pascal's Triangle.

  2. The Fibonacci sequence is the difference of the entries in each row of Pascal's Triangle.

  3. The Fibonacci sequence is the product of the entries in each row of Pascal's Triangle.

  4. The Fibonacci sequence is the quotient of the entries in each row of Pascal's Triangle.


Correct Option: A
Explanation:

The Fibonacci sequence is the sum of the entries in each row of Pascal's Triangle.

What is the largest number that can be represented by a 10-digit binary number?

  1. 1023

  2. 1024

  3. 2047

  4. 2048


Correct Option: A
Explanation:

The largest number that can be represented by a 10-digit binary number is 1111111111, which is equal to 1023 in decimal.

What is the smallest number that can be represented by a 10-digit binary number?

  1. 0

  2. 1

  3. 1023

  4. 1024


Correct Option: A
Explanation:

The smallest number that can be represented by a 10-digit binary number is 0000000000, which is equal to 0 in decimal.

How many 1's are there in the binary representation of the number 1023?

  1. 10

  2. 11

  3. 12

  4. 13


Correct Option: A
Explanation:

The binary representation of the number 1023 is 1111111111, which contains 10 1's.

How many 0's are there in the binary representation of the number 1023?

  1. 0

  2. 1

  3. 2

  4. 3


Correct Option: A
Explanation:

The binary representation of the number 1023 is 1111111111, which contains 0 0's.

What is the sum of the first 100 positive integers?

  1. 5050

  2. 5150

  3. 5250

  4. 5350


Correct Option: A
Explanation:

The sum of the first 100 positive integers is equal to (100 * 101) / 2 = 5050.

What is the sum of the first 100 even positive integers?

  1. 2525

  2. 2575

  3. 2625

  4. 2675


Correct Option: A
Explanation:

The sum of the first 100 even positive integers is equal to (100 * 101) / 2 = 2525.

What is the sum of the first 100 odd positive integers?

  1. 2525

  2. 2575

  3. 2625

  4. 2675


Correct Option: B
Explanation:

The sum of the first 100 odd positive integers is equal to (100 * 101) / 2 + 100 = 2575.

What is the sum of the first 100 prime numbers?

  1. 24133

  2. 24233

  3. 24333

  4. 24433


Correct Option: A
Explanation:

The sum of the first 100 prime numbers is equal to 24133.

What is the sum of the first 100 perfect squares?

  1. 338350

  2. 339350

  3. 340350

  4. 341350


Correct Option: A
Explanation:

The sum of the first 100 perfect squares is equal to 338350.

What is the sum of the first 100 perfect cubes?

  1. 12467400

  2. 12477400

  3. 12487400

  4. 12497400


Correct Option: A
Explanation:

The sum of the first 100 perfect cubes is equal to 12467400.

- Hide questions