Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Let
G
=
sin
θ
sec
θ
1
+
tan
θ
+
cos
θ
csc
θ
1
+
cot
θ
,
G = \frac{\sin\theta\,\sec\theta}{1+\tan\theta}+\frac{\cos\theta\,\csc\theta}{1+\cot\theta},
G
=
1
+
tan
θ
sin
θ
sec
θ
+
1
+
cot
θ
cos
θ
csc
θ
,
…
Mathematics
Problem
Let
G
=
sin
θ
sec
θ
1
+
tan
θ
+
cos
θ
csc
θ
1
+
cot
θ
,
G = \frac{\sin\theta\,\sec\theta}{1+\tan\theta}+\frac{\cos\theta\,\csc\theta}{1+\cot\theta},
G
=
1
+
tan
θ
sin
θ
sec
θ
+
1
+
cot
θ
cos
θ
csc
θ
,
where
θ
\theta
θ
is an acute angle. (i) Simplify the first term of
G
G
G
. (ii) Simplify the second term of
G
G
G
. (iii) Hence show that
G
=
1
G = 1
G
=
1
.
Browse the problem library