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Question
Write the number of terms in the expansion of \[\left[ \left( 2x + y^3 \right)^4 \right]^7\] .
Solution
In the binomial expansion of \[\left( a + b \right)^n\], total number of terms will be (n + 1).
Now,
, total number of terms will be 28 + 1 = 29.
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