1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Mathematics
Sign of Trigonometric Ratios in Different Quadrants
If tan x=-3...
Question
If
tan
x
=
−
3
4
,
3
π
2
<
x
<
2
π
, then find
cos
2
x
Open in App
Solution
tan
x
=
−
3
4
fourth Qua
3
π
2
<
x
<
2
π
cos
2
x
=
1
−
2
cos
2
x
=
1
−
2
(
4
5
)
2
cos
2
x
=
1
−
2
(
16
25
)
=
25
−
32
25
=
−
7
25
cos
2
x
=
−
7
25
Suggest Corrections
0
Similar questions
Q.
If
t
a
n
x
=
−
3
4
,
3
π
2
<
x
<
2
π
, then find
sin
2
x
Q.
If
tan
x
=
−
3
4
,
3
π
2
<
x
<
2
π
,
t
h
e
n
f
i
n
d
(
i
)
sin
2
x
(
i
i
)
cos
2
x
(
i
i
i
)
tan
2
x
Q.
If
f
(
x
)
=
∣
∣ ∣ ∣
∣
cos
x
e
x
2
2
x
cos
2
x
2
x
2
sec
x
sin
x
+
x
3
1
2
x
+
tan
x
∣
∣ ∣ ∣
∣
, then the value of
π
/
2
∫
−
π
/
2
(
x
2
+
1
)
[
f
(
x
)
+
f
′′
(
x
)
]
d
x
Q.
c
o
s
2
x
+
c
o
s
2
(
x
+
2
π
3
)
+
c
o
s
2
(
x
−
2
π
3
)
=
3
2
Q.
If
tan
x
+
tan
(
x
+
π
3
)
+
tan
(
x
+
2
π
3
)
=
3
,then
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Trigonometric Functions in a Unit Circle
MATHEMATICS
Watch in App
Explore more
Sign of Trigonometric Ratios in Different Quadrants
Standard XII Mathematics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app