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