See Vivian Lee's answer to Oscar's Secondary 2 Maths question

Vivian Lee's answer to Oscar's Secondary 2 Maths question.

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Date Posted: 6 years ago

Comments 4 add a comment

Oscar

6 years ago

Thanks for your help. However can u explain why we don't need to use cos inverse to find (b)(i). When asked to find an angle, we usually inverse the cos to derived at the answer?

Oscar

6 years ago

Thanks for your help.

Vivian Lee

6 years ago

Because qns ask for cosRSP they didnt ask u to solve for the angle

Oscar

6 years ago

Great! Thanks.