1. The Value of ^5P5 = 5 2. The value of ^(10)C9 = 10

Question

State whether the statements True or False.

1. The Value of ⁵P₅ = 5

2. The value of ¹⁰C₉ = 10

3. If some or all of n objects are taken at a time, then number of combination is 2ⁿ - 1

4. Three letters can be posted in five letter boxes is 35 ways.

5. There are 12 points in a plane of which 5 points are collinear then the number of lines by joining these points in pairs is ¹²C₂ - ⁵C₂.

Answer 1

1. False

2. True

3. True

4. False

5. False