Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
In
△
A
B
C
\triangle ABC
△
A
B
C
,
∠
B
=
90
∘
\angle B = 90^{\circ}
∠
B
=
9
0
∘
and
∠
A
=
θ
\angle A = \theta
∠
A
=
θ
. It is given that
sin
θ
=
3
5
\sin\theta = \dfrac{3}{5}
sin
θ
=
5
3
. Answer the following questions. a. (i) Find
csc
θ
\csc\theta
csc
θ
. b. (ii) Calculate
cos
θ
\cos\theta
cos
θ
and hence
sec
θ
\sec\theta
sec
θ
. c. (iii) Determine
tan
θ
\tan\theta
tan
θ
and
cot
θ
\cot\theta
cot
θ
. d. (iv) Verify that
(
csc
θ
)
2
−
(
cot
θ
)
2
=
1
(\csc\theta)^2 - (\cot\theta)^2 = 1
(
csc
θ
)
2
−
(
cot
θ
)
2
=
1
using the values obtained above.
Browse the problem library