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Standard XII
Mathematics
Question
Solve
sin
2
x
+
5
cos
x
+
5
sin
x
+
1
=
0
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Solution
Verified by Toppr
1
+
sin
2
x
=
(
sin
x
+
cos
x
)
2
∴
u
2
+
5
u
=
0
∴
u
=
0
,
−
5
,
∴
u
=
0
⇒
tan
x
=
−
1
∴
x
=
n
π
−
π
4
u
=
−
5
i.e.,
sin
x
+
cos
x
=
−
5
(not possible).
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3
Similar Questions
Q1
Solve
sin
2
x
+
5
cos
x
+
5
sin
x
+
1
=
0
View Solution
Q2
How many values of
x
ϵ
[
0
,
2
π
]
satisfies the equation sin 2x + 5 sin x + 1 + 5 cos x = 0?
___
View Solution
Q3
Four times the sum of the roots of the equation
s
i
n
2
x
+
5
s
i
n
x
+
5
c
o
s
x
+
1
=
0
in the interval [0, 50
π
] is p
π
where
p
is equal to
View Solution
Q4
5
s
i
n
x
+
4
c
o
s
x
=
3
⟹
4
s
i
n
x
−
5
c
o
s
x
=
View Solution
Q5
Simplify :
cos
−
1
(
3
5
cos
x
+
4
5
sin
x
)
View Solution