1.

Write the middle term in the expansion of (2x + 5y)6​

Answer»

Since N is even number, ( 28 +1) th term i.e., 5th term is the middle term in (2X + 3Y) 8 .T 5 =T 4+1 = 8 C 4 (2x) 8−4 (3y) 4 = 8 C 4 (2x) 4 (3x) 4



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