SubArea: Sine, cosine, tangent and cotangentLevel: AProject ID: 9000032009Accepted: 1Clonable: 0Easy: 1Evaluate \(\mathop{\mathrm{tg}}\nolimits \left ( \frac{\pi }{4}\right )\).\(1\)\(\frac{\sqrt{3}} {3} \)\(0\)\(\frac{\sqrt{2}} {2} \)\(-\frac{\sqrt{2}} {2} \)\(- 1\)
