The number of irrational terms in the ...

The number of irrational terms in the expansion of `(2^(1//5) + 3^(1//10))^(55)` is

A

5

B

6

C

4

D

7

Verified by Experts

The correct Answer is:

A

`"Use" T_(r+1)=""^(n)C_(r)x^(n-r)y^(r)`. Find the number of value of r for which both r and (n-r) are integers .

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