Question

1) find the term independent (constant ) of x in (3x-5/x^2) ^9.do problem i will give you brain list mark​

Answer 1

Answer:

It is given that,

The expansion is (3x-5/x²)⁹

Here,n=9,

p=1, q=2

r=np/p+q

r=9×1/3

r=9/3=3

Tn+1=ⁿCr(x)^(n-r)×(a)^r

T3+1=9C3(3x)⁶(5/x²)³

T3+1=9C3(3⁶)(x⁶)(5³)(1/x⁶)

T3+1=9c3(3⁶)(5³)

on solving,

u will get the independent term...

Step-by-step explanation:

Hope it helps you......