Level:
Project ID:
9000086703
Accepted:
1
Clonable:
0
Easy:
1
Identify the optimal substitution which simplifies the following equation as much as
possible.
\[
5\mathop{\mathrm{cotg}}\nolimits (30^{\circ }- 4y) = 0
\]
\(30^{\circ }- 4y = t\)
\(\mathop{\mathrm{cotg}}\nolimits (30^{\circ }- 4y) = t\)
\(\mathop{\mathrm{cotg}}\nolimits (30^{\circ }- 4y) = 0\)
\(4y = 0\)