The Student Room Group
Uni students - Complete our survey >>
Uni students - Complete our survey >>
Uni students - Complete our survey >>

Simpler trig

Please can someone show me how to work out this question and show their working?

Find cosx and tanx given that sinx= -7/25 and 270°<x<360°
Reply 1
Avatar for thefatone
thefatone
OP
6
Scrap the top question help with this one please.

given that cosx= 3/4 and that x is reflex find the exact value of sinx and tanx
(edited 8 years ago)
Draw their graphs to identify if they're negative and do a normal triangle to get the magnitude.
Reply 3
Avatar for thefatone
thefatone
OP
6
Original post by Vikingninja
Draw their graphs to identify if they're negative and do a normal triangle to get the magnitude.


Thanks a bunch i just worked it out xD

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you