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Trigonometry
Paper 1 · Trigonometry
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How many solutions does the equation
2
cos
2
x
+
3
sin
x
=
3
2\cos^2 x + 3\sin x = 3
2
cos
2
x
+
3
sin
x
=
3
have in the interval
0
≤
x
≤
3
π
0 \le x \le 3\pi
0
≤
x
≤
3
π
?
A
2
2
2
B
3
3
3
C
4
4
4
D
5
5
5
E
6
6
6
F
7
7
7
Hint
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