Question

Class 11 Chapter 7 Maths CBSE

pls solve this Question ( ch:- permutations and combinations)​

Answer 1

Answer:

(m+2)(m+1)

Step-by-step explanation:

(m+2) P2

= (m+2)! / (m+2-2)!

= (m+2)! / m!

= (m+2)(m+1)m! / m!

= (m+2)(m+1)

Answer 2

m+2

m+2! /(2-2) !

m + 2! / (0) !

m + 2× 1 / 1

m+ 2

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