Ava45018 Ava45018
  • 12-09-2020
  • Mathematics
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What am I doing wrong in step 5?

What am I doing wrong in step 5 class=
What am I doing wrong in step 5 class=

Respuesta :

MathPhys
MathPhys MathPhys
  • 12-09-2020

Step-by-step explanation:

t = 9x, and dx = 1/9 dt.

∫ sin(9x) dx

= ∫ sin(t) (1/9 dt)

= 1/9 ∫ sin(t) dt

= -1/9 cos(t)

= -1/9 cos(9x)

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