SubArea: Sine, cosine, tangent and cotangentLevel: AProject ID: 9000032008Accepted: 1Clonable: 0Easy: 1Evaluate \(\mathop{\mathrm{cotg}}\nolimits \left (-\frac{3\pi } {2}\right )\).\(0\)\(\frac{\sqrt{2}} {2} \)\(\sqrt{3}\)undefined\(1\)\(-\frac{\sqrt{2}} {2} \)
