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Byju's Answer
Standard X
Mathematics
Standard Values of Trigonometric Ratios
Solve: 1 - ...
Question
Solve:
1
−
tan
10
o
1
+
tan
10
o
A
0.6
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B
0.7
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C
0.8
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D
0.5
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Solution
The correct option is
C
0.7
1
−
tan
10
o
1
+
tan
10
o
=
tan
[
45
o
−
10
o
]
(using formula)
=
tan
35
o
=
0.7
.
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0
Similar questions
Q.
Prove that
tan
80
o
=
tan
10
o
+
2
tan
70
o
Q.
Find the value of :
2
tan
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o
cot
37
o
−
cot
80
o
tan
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Q.
Express
(
0.8
×
0.7
)
−
(
0.65
×
0.6
)
(
0.65
×
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)
−
(
0.62
×
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in the form of a fraction.
Q.
Check whether the following probabilities
P
(
A
)
and
P
(
B
)
are consistently defined
(i)
P
(
A
)
=
0.5
,
P
(
B
)
=
0.7
,
P
(
A
∩
B
)
=
0.6
(ii)
P
(
A
)
=
0.5
,
P
(
B
)
=
0.4
,
P
(
A
∪
B
)
=
0.8
Q.
Solve the following inequality:
(
0.5
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