Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Problem
Problem
If in a
Δ
A
B
C
\Delta ABC
Δ
A
B
C
,
sin
A
=
sin
2
B
\sin A = \sin^2 B
sin
A
=
sin
2
B
and
2
cos
2
A
=
3
cos
2
B
2 \cos^2 A = 3 \cos^2 B
2
cos
2
A
=
3
cos
2
B
, then the
Δ
A
B
C
\Delta ABC
Δ
A
B
C
is a. right angled b. obtuse angled c. isosceles d. equilateral
Browse the problem library