Find the term independent of x in the expansion (3x^2-1/2x^3)^10
Abir , 7 Years ago
Grade 11
Algebra> Find the term independent of x in the exp...
1 Answers
Arun
Last Activity: 7 Years ago
Dear Student
Tr+1 = 10Cr (3x2)10 –r (–1/2x3)r
for independent term of x
power of x should be zero
20 – 2r – 3r = 0
5 r = 20
r = 4
hence
5th term will be the independent term.
Regards
Arun (askIITians forum expert)
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