Kahwai's answer to Tricia Chew's Secondary 3 A Maths Singapore question.
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Hint:
1) change everything to sine and cosine
Ultimately
Asin(x)+Bcos(x) = C
Then use...
(A^2+B^2)^0.5 sin(x+arctan(B/A))= C
And solve X
1) change everything to sine and cosine
Ultimately
Asin(x)+Bcos(x) = C
Then use...
(A^2+B^2)^0.5 sin(x+arctan(B/A))= C
And solve X
Date Posted:
3 years ago
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