Hello! Can i get some help for this question ? Much appreciated, thank you!

Ask Singapore Homework?

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

junior college 1 | H2 Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question

junior college 1 H2 Maths Singapore

Hello! Can i get some help for this question ? Much appreciated, thank you!

Date Posted: 5 years ago

Huien

5 years ago

first part use MF26 trigo formula
sinP - sinQ = 2cos1/2(P+Q)sin1/2(P-Q)
where P is n+1, Q is n-1

second part use summation eqn, method of difference

Anika

5 years ago

Could i get the steps because i still can't seem to get the answer ? :(

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

not sure if I made careless mistakes

Date Posted: 5 years ago

Anika

5 years ago

Yep it's correct ! I finally got my mistake corrected . thank you very much !!