高中数学联赛模拟试题10套6

1z1z2i112zz⋅1arg6zπ=z2=A33i22−+B33i22−C33i22−+D33i22−2()21log()2afxaxx=−+[1,2]aA15(,)28B3(,)2+∞C153(,)(,)282+∞∪D1(,)2+∞3M(−24)N(44)F1(10)F2A()()221412516xy−−+=y0x=1y0B()()221411625xy−−+=x0x=1y0C()()224112516xy−−+=y0y=1x0D()()224111625xy−−+=x0y=1x04aba+b=12112Mab=+++A1B2C3D45401550A9B10C12D156mnn158A12B13C14D157ABCDABBC23ADBCEFGHACMNAMNAFH_____8ABCabcABCa2+b2=2c2C_____9aa111n_____10f(x)g(x)x0f(x)g(x)=min{f(x),g(x)}f(x)=3−xg(x)=25x+f(x)g(x)_____111100100_____12a0a5−a3+a=2a6(0,3)66(2,3)6(3,)+∞3(0,2)_____Ax+Bx+C=0ABC0b2x2+a2y2=a2b2PQOOPOQ2222222ababCAB+=[phone]c19c19.711215420.30.50.250ABCDAD=λABABABPPCPDABEFAE2+BF2=AB2λ50aiR+i=1,2,,n1niiSa==∑2nN31nkkkaSa=−∑2111nkkan=−∑50{cn}cn+1=|1−|1−2cn||0c111c12c1TT=2,3,1A2C3A4B5C6C16π23π31(1)na−4231−5250068232910203040925850806022λ=12