Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

secondary 4 | A Maths
2 Answers Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Zen
Zen

secondary 4 chevron_right A Maths chevron_right Singapore

I need help with (b)!

Date Posted: 3 years ago
Views: 222
Eric Nicholas K
Eric Nicholas K
3 years ago
I do this later by 4 am, since I am packed the entire day.

I give you a clue: convert the equation into x = e^something y.

Then integrate to y, but that region will be on the negative side.
Zen
Zen
3 years ago
Ok, thanks!

See 2 Answers

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Arnold K H Tan
Arnold K H Tan's answer
2088 answers (A Helpful Person)
1st
AT
J
J
3 years ago
There's a small error at the 5th last line. It should be -3(2ln2) instead of -2(2ln2) as the integral is 3y.

Final answer (exact form) would be 6ln3 - 5ln2 - 9/4
Arnold K H Tan
Arnold K H Tan
3 years ago
Oh yeah... thanks J.
J
J
3 years ago
No problem
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Arnold K H Tan
Arnold K H Tan's answer
2088 answers (A Helpful Person)
Number corrected. Thanks again, J.
Zen
Zen
3 years ago
Thank you!