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Amitesh Kumar
Subject: Maths
, asked on 24/5/18
Q. Find the domain
y
=
cos
-
1
x
2
1
+
x
2
Answer
1
अर्कज
Subject: Maths
, asked on 24/5/18
E
x
p
l
a
i
n
:
4
π
3
i
s
o
n
e
s
u
c
h
v
a
l
u
e
o
f
x
f
o
r
w
h
i
c
h
sin
x
=
-
3
2
.
O
n
e
m
a
y
t
a
k
e
a
n
y
o
t
h
e
r
v
a
l
u
e
o
f
x
f
o
r
w
h
i
c
h
sin
x
=
-
3
2
.
T
h
e
s
o
l
u
t
i
o
n
s
o
b
t
a
i
n
e
d
w
i
l
l
b
e
t
h
e
s
a
m
e
a
l
t
h
o
u
g
h
t
h
e
s
e
m
a
y
a
p
p
a
r
e
n
t
l
y
l
o
o
k
d
i
f
f
e
r
e
n
t
.
Answer
1
अर्कज
Subject: Maths
, asked on 24/5/18
Explain and proof theorem 3 . No link
Theorem 3 Prove that if x and y are not odd mulitple of
π
2
, then tan x = tan y implies x = n
π
+ y, where n
∈
Z
Answer
2
अर्कज
Subject: Maths
, asked on 24/5/18
E
x
p
l
a
i
n
t
h
e
t
h
e
o
r
e
m
:
F
o
r
a
n
y
r
e
a
l
n
u
m
b
e
r
s
x
a
n
y
,
cos
x
=
cos
y
,
i
m
p
l
i
e
s
x
=
2
n
π
±
y
,
where
n
∈
Z
Answer
1
अर्कज
Subject: Maths
, asked on 24/5/18
E
x
p
l
a
i
n
t
h
e
p
r
o
o
f
o
f
t
h
e
o
r
e
m
:
F
o
r
a
n
y
r
e
a
l
n
u
m
b
e
r
s
x
a
n
d
y
,
sin
x
=
sin
y
i
m
p
l
i
e
s
x
=
n
π
+
-
1
n
y
,
where
n
∈
Z
Answer
1
अर्कज
Subject: Maths
, asked on 24/5/18
22
)
c
o
t
x
c
o
t
2
x
-
c
o
t
2
x
c
o
t
3
x
-
c
o
t
3
x
c
o
t
x
=
1
23
)
tan
4
x
=
4
tan
x
(
1
-
tan
x
)
1
-
6
tan
2
x
+
tan
4
x
Answer
1
अर्कज
Subject: Maths
, asked on 24/5/18
Explain quadrantal angles , sine and cosine functions and the page . No links
Answer
1
अर्कज ..
Subject: Maths
, asked on 24/5/18
If values of any trigonometric-functions repeat after an fixed interval , then how are the values used ? Explain through this example: No links .
Answer
1
Aryan Sahoo
Subject: Maths
, asked on 24/5/18
1. Which of the six trigonometric functions are positive for
x
=
-
10
π
3
?
Answer
1
Ayan
Subject: Maths
, asked on 23/5/18
Q
-
tan
2
θ
-
sin
2
θ
=
tan
2
θ
sin
2
θ
Q
-
tan
θ
1
-
c
o
t
θ
+
c
o
t
θ
1
-
tan
θ
=
s
e
c
θ
cos
e
c
θ
+
1
Answer
1
अर्कज ..
Subject: Maths
, asked on 23/5/18
No links
Q
17
.
If
tan
y
2
=
a
b
,
then
what
is
the
value
of
a
sin
y
+
cos
y
?
A
)
0
B
)
1
C
)
a
D
)
b
Answer
1
अर्कज
Subject: Maths
, asked on 23/5/18
No links
Question No. 1
What is the radian measure corresponding to 157
o
30'?
(A) 2.25 radians
(B) 2.75 radians
(C) 3.15 radians
(D) 3.65 radians
Answer
2
अर्कज
Subject: Maths
, asked on 23/5/18
Q). What is the value of
tan
-
750
°
×
c
o
t
150
°
+
sin
19
π
4
-
cos
9
π
4
?
A. 1 -
2
B. 0
C. 1
D.
2
+ 1
Answer
2
Navya J Nair
Subject: Maths
, asked on 22/5/18
Question 17 plss solve it.
Q.17.
1
+
1
cos
A
=
tan
2
A
s
e
c
A
-
1
Answer
1
अर्कज ..
Subject: Maths
, asked on 22/5/18
Solve this:
Use the following information to answer the next question.
A function is said to be an even function if f (-x) = f (x) and odd function if
f(-x)=-f(x)
Which of the following trigonometric functions is neither an odd function nor an even function?
(A) sin x + cos x
(B) cos x + tan
2
x
(C) cot x + cosec x
(D) (tan x + cot x) x cosec x
Answer
1
1
2
3
4
5
Next
What are you looking for?
Theorem 3 Prove that if x and y are not odd mulitple of , then tan x = tan y implies x = n + y, where n Z
Question No. 1
What is the radian measure corresponding to 157o 30'?
(A) 2.25 radians
(B) 2.75 radians
(C) 3.15 radians
(D) 3.65 radians
A. 1 -
B. 0
C. 1
D. + 1
Q.17.
Use the following information to answer the next question.
A function is said to be an even function if f (-x) = f (x) and odd function if
f(-x)=-f(x)
Which of the following trigonometric functions is neither an odd function nor an even function?
(A) sin x + cos x
(B) cos x + tan2x
(C) cot x + cosec x
(D) (tan x + cot x) x cosec x