Let f( heta )=(cos(5 heta ))/( heta ), find lim_( heta ->0)f( heta ).
able[[x,-0.1,-0.01,-0.001,0.001,0.01,0.1],[f( heta ),-8.7758256,,,,,8.7758256]]
26) Let f(0) =cos (50) ,find lim f(0). 0 0-0
-0.1
-0.01
-0.001
0.001
0.01
0.1
f(0)|8.7758256
8.7758256