Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Simplify the expression for an acute angle
x
x
x
:
S
=
1
+
tan
(
90
∘
−
x
)
tan
x
sec
(
90
∘
−
x
)
csc
x
.
S=\dfrac{1+\tan(90^\circ - x)\tan x}{\sec(90^\circ - x)\csc x}.
S
=
sec
(
9
0
∘
−
x
)
csc
x
1
+
tan
(
9
0
∘
−
x
)
tan
x
.
Which of the following is the simplified form of
S
S
S
? a)
2
cos
2
x
2\cos^2 x
2
cos
2
x
b)
2
sin
2
x
2\sin^2 x
2
sin
2
x
c)
tan
2
x
\tan^2 x
tan
2
x
d)
2
sin
x
cos
x
2\sin x\cos x
2
sin
x
cos
x
Browse the problem library