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secondary 4 | A Maths
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girl
Girl

secondary 4 chevron_right A Maths chevron_right Singapore

Can anyone help me with part b? Thank you

Date Posted: 3 years ago
Views: 190
Justin
Justin
3 years ago
sin2x = 2 sinxcosx
cos x is found from part 1
sinx need to be find-->
draw right angle triangle --> to find
or use sin square x + cos square x =1
girl
Girl
3 years ago
how do u find sin theta with a right angle triangle, I don’t have any values except 2/3 which I subbed into 2sin theta cos theta

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Mr Ang
Mr Ang's answer
347 answers (A Helpful Person)
1st
Kindly verify the workings eh, thanks.
girl
Girl
3 years ago
tes i got that! Thank you=)