Write the degree of each polynomial given below :
(i) xy + 7z
(ii) x^{2} – 6x^{3} + 8
(iii) y – 6y^{2 }+ 5y^{8}
(iv) xyz – 3
(v) xy + yz^{2} – zx^{3}
(vi) X^{5}y^{7} – 8x^{3}y^{8} + 10x^{4}y^{4}z^{4}
(i) degree = 2 (Polynomial is xy + 7z)(ii) degree = 3 (Polynomial is x^{2} – 6x^{3} + 8 y)(iii) degree = 8 (Polynomial is y – 6y^{2} + 5y^{8})(iv) degree = 3 (Polynomial is xyz – 3)(v) degree = 4 (Polynomial is xy + yz^{2} – xz^{3})(vi) degree = 12 (Polynomial is x^{5}y^{7 }– 8x^{3}y^{8} + 10x^{4}, y^{4}z^{4})