# Trigonometry - Double Angle help 😔

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#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 :/

Thanks
0
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 :/

Thanks
No need to apologise for posting multiple question

Note that 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
#3
(Original post by RDKGames)
No need to apologise for posting multiple question

Note that 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
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