JohnCurrie
New member
- Joined
- Jul 15, 2016
- Messages
- 2
Dear Tutors,
I am trying to anti derive formulas for my maths assignment and I didn't understand how to solve one of the questions. Naturally, I checked the answers on an online calculator in order to find what I did wrong and their answer jumps ahead a step without explaining what its working was.
Original Equation: y = 2x ⋅ sin(0.1 ⋅ x^2)
Simpify = 2x ⋅ sin(x^2/10)
substitute u into sin: x^2/10 --> du/dx --> x/5
therefore = 10 ∫sin(u) ??
I don't understand where the 10 came from or why the 2x disappeared.
any help is appreciated, Thank you.
I am trying to anti derive formulas for my maths assignment and I didn't understand how to solve one of the questions. Naturally, I checked the answers on an online calculator in order to find what I did wrong and their answer jumps ahead a step without explaining what its working was.
Original Equation: y = 2x ⋅ sin(0.1 ⋅ x^2)
Simpify = 2x ⋅ sin(x^2/10)
substitute u into sin: x^2/10 --> du/dx --> x/5
therefore = 10 ∫sin(u) ??
I don't understand where the 10 came from or why the 2x disappeared.
any help is appreciated, Thank you.