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What is the largest set of real numbers x for… · Answer | StemPy Lab
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What is the largest set of real numbers x for which cos⁻¹(2x + 1) is defined?
Mathematics
Medium
High School (11–12)
Trigonometry › Inverse Trigonometric Functions
Board Exam
CUET UG
Created by
StemPy Lab
What is the largest set of real numbers
x
x
x
for which
cos
−
1
(
2
x
+
1
)
\cos^{-1}(2x + 1)
cos
−
1
(
2
x
+
1
)
is defined?
[
−
1
,
1
]
[-1, 1]
[
−
1
,
1
]
[
0
,
1
]
[0, 1]
[
0
,
1
]
[
−
2
,
0
]
[-2, 0]
[
−
2
,
0
]
[
−
1
,
0
]
[-1, 0]
[
−
1
,
0
]
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A right triangle has the angle y, and the ratio of its hypotenuse to the side next to y is 2/√3. If y is taken as a principal value of sec⁻¹, which angle is it? →
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