tmua 2020 Q13

tmua · Uk · paper1 1 marks Binomial Theorem (positive integer n) Find a Specific Coefficient in a Single Binomial Expansion

Find the coefficient of $x^2y^4$ in the expansion of $(1 + x + y^2)^7$
A $6$
B $10$
C $21$
D $35$
E $105$
F $210$

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Find the coefficient of $x^2y^4$ in the expansion of $(1 + x + y^2)^7$

A $6$

B $10$

C $21$

D $35$

E $105$

F $210$