Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Problem
Problem
If
x
1
x_1
x
1
and
x
2
x_2
x
2
are two distinct roots of the equation
a
cos
x
+
b
sin
x
=
c
a \cos x + b \sin x = c
a
cos
x
+
b
sin
x
=
c
, then
tan
x
1
+
x
2
2
\tan \frac{x_1 + x_2}{2}
tan
2
x
1
+
x
2
is equal to a.
a
b
\frac{a}{b}
b
a
b.
b
a
\frac{b}{a}
a
b
c.
c
a
\frac{c}{a}
a
c
d.
a
c
\frac{a}{c}
c
a
Browse the problem library