In the expansion of (x+y+z)^ 25

JEE Advanced Mathematics question

In the expansion of

Answer: (A),(B)

(x+y+=\{x+(y+z)\}^{25}={}^{25} +={}^{25} {}^{r} .

- (a) ✔ every term has this form. - (b) ✔ every term has total degree 25,

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Question ID VK-108363