>
数学
>
若sin2θ=1,则
tan(θ+
π
3
)
的值是( )
A.
2−
3
B.
−2−
3
C.
2+
3
D.
−2+
3
人气:433 ℃ 时间:2020-05-25 19:11:58
解答
∵sin2θ=1,∴2θ=
π
2
+2kπ
(k∈Z)
∴θ=
π
4
+kπ
(k∈Z)
∴
tan(θ+
π
3
)
=
tan(
π
4
+kπ+
π
3
)
=
tan(
π
4
+
π
3
)
=
1+
3
1−
3
=
−2−
3
故选B.
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