The Student Room Group
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>

AS Mathematics C2 Trigonometry Quetsion

Anyone able to give me a solution to:

(sinx-1)(5cosx+3)=0 in the interval 0<x<360
Original post by caitrionacarson
Anyone able to give me a solution to:

(sinx-1)(5cosx+3)=0 in the interval 0<x<360


What have you tried? :h:
Original post by SeanFM
What have you tried? :h:


okay so I was trying to expand it and use trig identities to solve it, but you just take them as your factor and have sinx=1 and cosx=-3/5 right? -_-
Original post by caitrionacarson
okay so I was trying to expand it and use trig identities to solve it, but you just take them as your factor and have sinx=1 and cosx=-3/5 right? -_-


Correct :h: do you know how to find the right x values?
Original post by SeanFM
Correct :h: do you know how to find the right x values?


yeah x=90, 126.9 and 233.1

Thanks haha
Original post by caitrionacarson
yeah x=90, 126.9 and 233.1

Thanks haha


:borat: good job :h:

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you