The number of terms in the expansion of $\left(y^{1/5} + x^{1/10}\right)^{55}$, in which powers of $x$ and $y$ are free from radical signs are (1) six (2) twelve (3) seven (4) five
The number of terms in the expansion of $\left(y^{1/5} + x^{1/10}\right)^{55}$, in which powers of $x$ and $y$ are free from radical signs are\\
(1) six\\
(2) twelve\\
(3) seven\\
(4) five