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In a right triangle the legs are 5 m and 12 m… · Answer | StemPy Lab
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In a right triangle the legs are 5 m and 12 m. The angle γ = tan⁻¹5/12 lies opposite the shorter leg. What is cosγ?
Mathematics
Medium
High School (11–12)
Trigonometry › Inverse Trigonometric Functions
Board Exam
CUET UG
Created by
StemPy Lab
In a right triangle the legs are
5
m
5\ \text{m}
5
m
and
12
m
12\ \text{m}
12
m
. The angle
γ
=
tan
−
1
5
12
\gamma = \tan^{-1}\dfrac{5}{12}
γ
=
tan
−
1
12
5
lies opposite the shorter leg. What is
cos
γ
\cos\gamma
cos
γ
?
13
12
\dfrac{13}{12}
12
13
12
13
\dfrac{12}{13}
13
12
5
13
\dfrac{5}{13}
13
5
12
5
\dfrac{12}{5}
5
12
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← An angle θ has cosθ = 12/13 and is the principal value cos⁻¹12/13. What is sinθ, which equals sin(cos⁻¹12/13)?
The double angle 2 tan⁻¹1/5 has to be written as one inverse sine. Which expression is correct? →
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Trigonometry › Inverse Trigonometric Functions
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