Tham KY's answer to Regina's Secondary 4 A Maths question.
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Date Posted:
7 years ago
How if i got + 0.46 instead
At the start when changing cosine to sine, did you take note of the negative?
Yup my answer is root 5 (sin 2 deter +0.464) i thot when Basic angle dont include the negative
Basic angle no negative, but the tan x is negative, so must take into consideration.
Oh okay