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Question
If
cos
θ
+
sin
θ
=
√
2
then
cos
θ
−
sin
θ
=
0
1
-1
√
2
A
0
B
1
C
-1
D
√
2
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Solution
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Similar Questions
Q1
Prove that
sin
θ
+
cos
θ
sin
θ
−
cos
θ
+
sin
θ
−
cos
θ
sin
θ
+
cos
θ
=
2
2
sin
2
θ
−
1
=
2
1
−
2
cos
2
θ
View Solution
Q2
(i)
sinθ
-
cosθ
sinθ
+
cosθ
+
sinθ
+
cosθ
sinθ
-
cosθ
=
2
(
2
sin
2
θ
-
1
)
(ii)
sinθ
+
cosθ
sinθ
-
cosθ
+
sinθ
-
cosθ
sinθ
+
cosθ
=
2
(
1
-
2
cos
2
θ
)
View Solution
Q3
Simplify:-
sin
θ
+
cos
θ
sin
θ
−
cos
θ
+
sin
θ
−
cos
θ
sin
θ
+
cos
θ
=
2
sin
2
θ
−
cos
2
θ
View Solution
Q4
If
x
=
sin
θ
|
sin
θ
|
,
y
=
cos
θ
|
cos
θ
|
,
99
π
2
≤
θ
≤
100
π
2
,
then
View Solution
Q5
If
(
1
+
sin
θ
−
cos
θ
1
+
sin
θ
+
cos
θ
)
2
=
λ
(
1
−
cos
θ
1
+
cos
θ
)
, then
λ
equals
View Solution