Calculus
y(0.5)≈2.5883y(0.5)\(\approx{2.5883}\)
y(0.5)=2tan1y(0.5)=2\(\tan{1}\)
y(0.5)≈2.1263y\(\left\)(0.5\(\right\))\(\approx\)2.1263
y(0.5)=4sin12y(0.5)=4\(\sin{\frac12}\)