Q. 154.0( 4 Votes )

# If α = ^{m}C_{2}, then find the value of ^{α}C_{2}.

Answer :

⇒ α = ^{m}C_{2}

We know that

And also n! = n(n – 1)(n – 2)…………2.1

⇒

⇒ ..... (1)

We need to find ^{α}C_{2}

⇒

⇒

From (1)

⇒

⇒

⇒

⇒

⇒

∴ The value of ^{α}C_{2} is .

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