Ask Singapore Homework?

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



Question

junior college 1 | H2 Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Rella
Rella

junior college 1 chevron_right H2 Maths chevron_right Singapore

Hi!! Can u help me with this qns pls? Thanku!!

Date Posted: 2 years ago
Views: 390

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Tee Yuan Qin
Tee Yuan Qin's answer
44 answers (Tutor Details)
1st
Take note that by using the given substitution, you have to substitute [dx] with [sec²θ dθ ].
Also take note that 1+tan²θ = sec²θ. This can be derived from basic trigonometric relationship (sin²θ +cos²θ =1) by dividing cos²θ throughout. Hope this helps.