questionr
Early access
Exams
Joint Entrance Examination
Mathematics
Trigonometric Functions and Equations
Question 32
Question 32 of 33
Medium
MCQ
\[ \text { The number of solutions of the equation } 2 x+3 \tan x=\pi, x \in[-2 \pi, 2 \pi]-\left\{ \pm \frac{\pi}{2}, \pm \frac{3 \pi}{2}\right\} \text { is: } \]
A
4
B
5
C
3
D
6
Check answer
Press A-D to select · Enter to check
Solutions · 1
Post your solution
Official solution
\[
2
x
+
3
tan
x
=
π
⇒
tan
x
=
π
−
2
x
3
,
x
∈
[
−
2
π
,
2
π
]
−
{
±
π
2
,
±
3
π
2
}
\begin{aligned} & 2 x+3 \tan x=\pi \\ & \Rightarrow \quad \tan x=\frac{\pi-2 x}{3}, x \in[-2 \pi, 2 \pi]-\left\{ \pm \frac{\pi}{2}, \pm \frac{3 \pi}{2}\right\} \end{aligned}
2
x
+
3
tan
x
=
π
⇒
tan
x
=
3
π
−
2
x
,
x
∈
[
−
2
π
,
2
π
]
−
{
±
2
π
,
±
2
3
π
}
\] 5 solutions
Answer the question to unlock
Previous
Next