# maths alevel trig question

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#1
I need help on solving 1-sin4x=1/2^1/2
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1 month ago
#2
(Original post by tharmi-t)
I need help on solving 1-sin4x=1/2^1/2
What have you tried?
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#3
1-sin4x= sinπ/4
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1 month ago
#4
(Original post by tharmi-t)
1-sin4x= sinπ/4
What does the question actually say?
I would have presumed they'd want you to do something with double angles on the left hand side?
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#5
it is a two part question should i send it
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1 month ago
#6
(Original post by tharmi-t)
it is a two part question should i send it
It does help to see the question
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#7
0
1 month ago
#8
So the right hand side of the OP is 1/2? It is not square rooted, which makes more sense?
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#9
oh right okay that makes a lot of sense thank you
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