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if a= n c 2 then prove that a c 2 = 3 × n+1 c 4

if a= nc then prove that 
ac2 = 3 × n+1c4
 

Grade:11

1 Answers

Ravi
askIITians Faculty 69 Points
7 years ago
With the value of a in terms of n, substitute the LHS ofac2= 3×n+1c4

Get the eqn in terms of just n as variable. Multiply and divide by 3 to obtain the factorial in the denominator as well as a 3 in the numerator as a multiplicand. Factorise the degree 4 eqn with
(n+1) as the known factor(...From n+1c4)

Get the value by obtaining the factors. and putting it in factorial form

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