а) а = 0, 0(95) ; b = 0, 0393993999...;
а = 0, 0(95)=0,09595...≈0,0960
b = 0, 0393993999...≈0,0394
0,096·0,0394=0,0037824≈0,00378
б) а = 0, 0(002) ; b = 0, 00002000002...
а = 0, 0(002)=0,0002002...≈0,000200
b = 0, 00002000002...≈0,0000200
0,0002*0,00002=0,000000004