Math, asked by syashpratap899, 3 months ago

Find the coefficient of ^2 in the expansion of (3x - 1 / x)^6.




Answers

Answered by sUnRiSeBlUeS
2

=64−192x+240x

=2−160x 3+20x 4 −12x 5 +x6

Coefficient of x² is 240

Similar questions