2
You visited us
2
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Mathematics
Domain and Range of Basic Inverse Trigonometric Functions
cos 25o+sin 2...
Question
cos
25
o
+
sin
25
o
cos
25
o
−
sin
25
o
=
A
tan
70
o
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
tan
56
o
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
tan
54
o
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
tan
73
o
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is
A
tan
70
o
cos
25
∘
+
sin
25
∘
cos
25
∘
−
sin
25
∘
=
1
+
tan
25
∘
1
−
tan
25
∘
=
45
∘
+
tan
25
∘
1
−
(
tan
45
∘
×
tan
25
∘
)
=
tan
(
25
+
45
)
∘
=
tan
70
∘
Suggest Corrections
0
Similar questions
Q.
If
cos
25
o
−
sin
25
o
=
k
then
cos
50
o
is equal to-
Q.
Prove the following:
sin
(
25
O
+
θ
)
⋅
cos
(
25
o
−
ϕ
)
−
cos
(
25
o
+
θ
)
⋅
sin
(
25
o
−
ϕ
)
=
sin
(
θ
+
ϕ
)
Q.
Evaluate
sin
65
o
cos
25
o
Q.
Prove that
sin
55
o
+
cos
25
o
=
2
cos
55
o
Q.
Express
(
√
3
cos
25
o
+
sin
25
o
)
2
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
Basic Inverse Trigonometric Functions
MATHEMATICS
Watch in App
Explore more
Domain and Range of Basic Inverse Trigonometric Functions
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
Solve
Textbooks
Question Papers
Install app