Level:
Project ID:
9000086707
Accepted:
1
Clonable:
0
Easy:
1
Identify the equation which arises from the following equation using an optimal
substitution.
\[
\mathop{\mathrm{tg}}\nolimits ^{2}y - 2\mathop{\mathrm{tg}}\nolimits y = 3
\]
\(t^{2} - 2t - 3 = 0\)
\(\mathop{\mathrm{tg}}\nolimits t = \frac{3}
{2}\)
\(t^{2} = \frac{3}
{2}\)
\(\mathop{\mathrm{tg}}\nolimits t = 3\)