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JEEMAIN and NEET
>>
Mathematics
>>
Class11
>>
Complex Numbers and Quadratic Equations
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Q)
If
cos
θ
+
2
cos
α
+
3
cos
β
=
sin
θ
+
2
sin
α
+
3
sin
β
=
0
, then
sin
3
θ
+
8
sin
3
α
+
27
sin
3
β
=
?
(A)
9
sin
(
θ
+
α
+
β
)
(B)
18
sin
(
θ
+
α
+
β
)
(C)
18
cos
(
θ
+
α
+
β
)
(D)
9
cos
(
θ
+
α
+
β
)
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