Back to forum
Desmos Graphing Calculator
Calc
Reference
Copy
Math
·
Geometry and Trigonometry
·
Right triangles and trigonometry
easy
The angle
a
is an acute angle. If
sin
a
=
x
and
b
=
9
0
∘
−
a
, what is the value of
cos
b
?
A
x
B
x
1
C
90
−
x
D
Cannot be determined
The angle \(a\) is an acute angle. If \(\sin a = x\) and \(b = 90^{\c… | Math SAT Question | Ronan SAT