00321nam a2200133Ia 4500008004100000020001500041082001600056100001600072245002500088260003700113300000700150650001600157650001400173140316s9999    xx            000 0 und d  a8123714904  a510bBHA/EV  aBhagwat,R M  aEveryday mathematics  aIndiabNational Book Trustc1999  a73  atrignometry  aVariables