The question of math

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1、MONTGOMERYCOLLEGEDepartmentofMathematicsCollegeMathematicsPracticeTestReviewthefollowingquestionsonlyifyouhavealreadysuccessfullycompletedsecondyearalgebraorahigherlevelmathematicscourse.221.()()xy++?=xy32222a)281x++xy0yd)28x?y2222b)21x+0ye)241x?+xy0y22c)27x+yx?522.Iffx()=andgxx()=?2xthengf((?1)

2、)=2a)1b)3c)15d)9e)–323.ArectanglehasalengthofN?3andawidthof34NN+.Whatisitsperimeter?323a)351NNN??2d)31NN?2322b)343NN+?e)61NN+06?2c)353NN+?284xx?4.?=3624xx?+44a)??(1x)d)x3324x(x?2)x+8x?4b)e)3(x+2)5x?234x?16xc)26x?1225.Whichofthefollowingcouldbethegraphofyx=cosfor0≤x≤π?a)b)c)111yyy1x23-11x231x23d)

3、e)11yy1x231x23-1-146.∑nn(1?=)n=1a)20d)144b)12e)22c)07.Whichofthefollowingequationscouldrepresentthegraphatright?y3a)yxx=3-18-12d)yx=??24232xb)yx=?4e)yxx=?+?343c)yx=48.Simplify4+1411?14a)d)1+14?1322b)8214?e)38+214c)1539.WhichofthefollowingisNOTequaltozero???π?1a)cos??d)sin(π)??2a?1b)tan0()e)cos(1

4、)??π??πc)cos???sin????44??210.Thex-value(s)ofallintersectionpointsofyx=62?andyx=+3is(are)a)–1onlyb)–3onlyc)1,–3d)–1,3e)1,311.sinθ()cscθθ?=sin22a)cosθd)cotθ?sinθ22b)tanθ?sinθe)sinθ2c)secθ?sinθ12.logx+=log202.Thenx=1a)b)80c)5d)–18e)110213.x+1isafactoroff()x.WhichofthefollowingisTRUE?a)f()?=10d)f(x

5、)hasanx-interceptof1b)f()xhasay-interceptof-1e)f(01)=c)fi()=0wherei=?12?5314.26?=411a)512b)c)16d)1e)51223x415.Whatistheleastcommondenominatorforand?2x?926x+22a)29()x?d)233()xx+()?22b)3264xx()++()x?9e)(xx?926)(+)c)23()x?4216.Whichofthefollowingcouldbethegraphofyx=?+()awherea>0?a)b)c)d)e)17.Findth

6、eequationofthelinepassingthrough(2,4?)andparallelto3xy+2=4.33a)yx=?+1d)yx=??12233b)yx=?7e)yx=+82228c)yx=??33218.Solvetanx=1where0≤≤xπ.Thenx=ππ3ππa)b),c)1,–1d)0e)24441319.Solvefory:+a=y+1y+122?aa)b)c)21a?d)2?ae)a?3aa20.Solve281x?<0a)x<9b)?<<99xc)x<1d)x>9e)?19<

7、eTest1.e2.c3.e4.d5.d6.a7.a8.b9.d10.c11.a12.c13.c14.e15.a16.a17.d18.b19.b20.e