Trigonometry - Double Angle help 😔

Watch
dxnixl
Badges: 17
Rep:
?
#1
Report Thread starter 1 month ago
#1
Hi,

sorry i’m posting another quesiton that i’ve been stuck on for ages - could someone help? I know the answer to a but not b :/

Name:  F6AA24BF-D4BF-4F81-B764-E0CB74CF9113.jpeg
Views: 7
Size:  20.5 KB

Thanks
0
reply
RDKGames
Badges: 20
Rep:
?
#2
Report 1 month ago
#2
(Original post by dxnixl)
Hi,

sorry i’m posting another quesiton that i’ve been stuck on for ages - could someone help? I know the answer to a but not b :/

Name:  F6AA24BF-D4BF-4F81-B764-E0CB74CF9113.jpeg
Views: 7
Size:  20.5 KB

Thanks
No need to apologise for posting multiple question

Note that \tan \theta = \tan \left( 2 \cdot \dfrac{\theta}{2} \right) so you can apply the double angle formulae on this and rewrite it. Make it equal to 4/3 and hence solve for what you need.
2
reply
dxnixl
Badges: 17
Rep:
?
#3
Report Thread starter 1 month ago
#3
(Original post by RDKGames)
No need to apologise for posting multiple question

Note that \tan \theta = \tan \left( 2 \cdot \dfrac{\theta}{2} \right) so you can apply the double angle formulae on this and rewrite it. Make it equal to 4/3 and hence solve for what you need.
oH alright thanks
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Current uni students - are you thinking of dropping out of university?

Yes, I'm seriously considering dropping out (136)
14.39%
I'm not sure (41)
4.34%
No, I'm going to stick it out for now (285)
30.16%
I have already dropped out (24)
2.54%
I'm not a current university student (459)
48.57%

Watched Threads

View All