Answer :

(i) To Find : Value of


Formulae :




Let,



By using above formula, we can write,



Cancelling (5!) from numerator and denominator we get,



x = 504


Conclusion : Hence, value of the expression is 504.


(ii) To Find : Value of


Formula :


Let,



By using the above formula we can write,



Cancelling (29!) from numerator and denominator,


x = 32 × 31 × 30


x = 29760


Conclusion : Hence, the value of the expression is 29760.


(iii) To Find : Value of


Formula :


Let,



By using the above formula we can write,



Taking (9!) common from numerator,



Cancelling (9!) from numerator and denominator,


x = (12 × 11 × 10) - 10


x = 1310


Conclusion : Hence, the value of the expression is 1310.


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