Algebra and Trigonometry Review Material

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Algebra and Trigonometry Review Material Department of Mathematics Vanderbilt University June 2, 2004 http://atlas.math.vanderbilt.edu/~pscrooke/calculus/calculus.html

Transcript of Algebra and Trigonometry Review Material

Algebra and Trigonometry

Review Material

Department of MathematicsVanderbilt University

June 2, 2004

http://atlas.math.vanderbilt.edu/~pscrooke/calculus/calculus.html

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hi Y e ] q_ T r T hT m � �e � ] ��������� eÌ ¤ m 1W e Ö hú�óÌ 1W q_ � e � he 1W e � q_�1QV LQ GtDLP1OQ WOH GLSR OW PRG WOKKOg 1QU K1QGI Y �Q GLSR SLIG T IOKNG PRG GtDLP1OQ WOH Y_r Y jRG K1QG g 1PR IKOJ G _ LQV ¡1QPGHSGJP m Y_ hY jRG K1QG g 1PR IKOJ G q ïö LQV ¡1QPGHSGJP m Y__ Y jRG K1QG PRLP UO GI PRHODUR PRG JO1QPI �_ Th� LQV �m T_� Y_m Y jRG K1QG PRLP UO GI PRHODUR PRG JO1QPI �a T_� LQV �b Th� Y_a Y jRG K1QG PRHODUR PRG J O1QP �hTr� PRLP 1I JLHLKKGK PO PRG K1QG ] �î ¤ _ Y_« Y jRG K1QG PRLP 1I JLHLKKGK PO ] qe q h LQV UOGI PRHODUR PRG J O1QP �r Ta� Y_b Y jRG K1QG PRLP 1I J GHJ GQV1SDKLH PO ] _e LQV RLI ¡1QPGHSGJP « Y_� Y jRG K1QG PRLP 1I J GHJ GQV1SDKLH PO ] qme ¤ _ LQV UO GI PRHODUR PRG JO1QP �_ T_� Y_c Y jRG K1QG PRLP 1I J GHJ GQV1SDKLH PO ] e ¤ _ LQV 1QPGHIGSPI PRLP K1QG LP PRG ILE GJO1QP PRLP 1P 1QPGHIGSPI g 1PR ] _e ¤ hY2 HLJR GLSR OW PRG WOKKOg 1QU K1QGI Y_i Y ] qme ¤ _mr Y ] q úÌ e ¤ hmhY ] }_e q mm_ Y q a ] @ îÌ e

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«_

������ � ª õOEJKGPG PRG ItDLHG 1Q PRG G�JHGII1OQ Ì q � ¤ _hY Ì q � ¤ _h ] � Ì q � � ¤ _h] ì Ì q � ¤ aia í ¤ _h q aia I1QSG ìq�_ íÌ ] aia] ì q �_ í Ì ¤ ca q aia] ì q �_ í Ì ¤ m«a������ � ª õOEJKGPG PRG ItDLHG OQ e LQV 1Q PRG GtDLP1OQ eÌ ¤ h_e ¤ Ì q ] ha Y

ha ] eÌ ¤ h_e ¤ Ì q ] �eÌ ¤ h_e � ¤ � Ì q �] �eÌ ¤ h_e ¤ mb� q mb ¤ ì Ì q ¤ ha í q ha] �e ¤ b�Ì ¤ ì q h_í Ì q ìmb ¤ ha í] �e ¤ b�Ì ¤ ì q h_í Ì q ha«a�O gG RLNG �e ¤ b�Ì ¤ ì q h_í Ì q ha«a ] ha `gR1SR I1EJK1 GI PO PRG GtDLP1OQ�e ¤ b�Ì ¤ ì q h_ íÌ ] ha ¤ ha«aOH �e ¤ b�Ì ¤ ì q h_ íÌ ] «b ¤ ha«a ] _rha n«m

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(-1, 0) (1, 0)

(0, 1)

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135

jRG LFONG LQUKGI LHG E GLIDHGV DI1QU ��"��� Y [Q LQUKG � ELM LKIO F G EGLIDHGVDI1QU ������ Y jRG HLV1LQ E GLIDHGE GQP SOHHGIJ OQVI PO L V1IPLQSG LHODQV PRG S1HSDE ¡WGHGQSG T � T OW PRG DQ1P S1HSKG �� ] _� � YéGP DI E GLIDHG LQ LHS OQ PRG DQ1P S1HSKG IPLHP1QU LP �h` r� OW KGQUPR �ë LQV GQV1QU LPL JO1QP P Y �W gG VHLg L HLM WHOE PRG OH1U1Q PRHODUR JO1QP P T gG RLNG WOHE GV LQ LQUKG� T gRGHG � ] �ë HLV1LQI Yradians

P

(1,0)

θ4

π

«b

jRG WOKKOg 1QU PgO LQUKGI LHG PRG ILE G Y4

πradians45 OR

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� HLV1LQI ] hcr��hcr HLV1LQI ] h�mr À �hcr HLV1LQI ] mr À h��b HLV1LQI ] mr������� � ª õOQNGHP ��ï HLV1LQI PO VGUHGGI Y

� HLV1LQI ] hcr�c« À � HLV1LQI ] c« À hcr�c�« HLV1LQI ] _cc�«�

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(x, y)

(1, 0)(-1, 0)

(0, 1)

(0, -1)

P

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45

2

11

2

1 «c

�M EON1QU PR1I PH1LQUKG 1QPO PRG DQ1P S1HSKG LQV HGE GEFGH1QU PRLP a«� GtDLKI �ëHLV1LQI T gG  QV PRLP PRG SOHHGIJ OQV1QU JO1QP OQ PRG DQ1P S1HSKG RLI �e ` �¡SOOHV1QLPGI ú@ Ì ` ú@Ì � Y1

2

1

2,( )

1

2x =

11

2y =π

4

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60

3

2

2

1

1«i

π

6

3

2x =

2

1y =

3

2

1

2

1( , )

12

x =

32

y =

12

32

1

( , )

π3

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π6

π4

π3

π3

2

π2

3

2,( 1

2 )

1

2, 3

2 )(

(

2

1 , 0 )

0 , 1( )

-1 , 0( )

0 , -1( )

π2π 0,

, )( 1 1

2

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III IV

x

y

II I

x>0

(0,0)

y>0

x<0y<0

x<0y>0x>0

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Tan

positivecot

positive

Cossecθ

positive

All

positive

θ θθ

θθ

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π3

π22π

3

4π3

2π3

π20,

1

2

3

2

III

( , )

1

2

3

2,-( - )

π

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bm

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hypotenuse

θ

opposite

adjacentjR1I U1NGII1Q � ] OJJOI1PGRMJOPGQDIG SOI � ] LVX LSGQPRMJOPGQDIG PLQ � ] OJJOI1PGLVX LSGQPÂQG SLQ HGE GEFGH PRGIG GtDLP1OQI DI1QU PRG LSHOQME ¨�ÂË õ[Ë jÂ[© gRGHG � ]I1QG T  ] OJJOI1PG T Ë ] RMJOPGQDIG T õ ] SOI1QG T [ ] LVX LSGQP T LQV j ] PLQUGQP Y��Q PRG JHGN1ODI PH1LQUKG T gG LIIDEGV � gLI 1Q �DLV � Y ËOgGNGH T FM DI1QU IMEEGPHMTgG SLQ LIIDE G � 1I 1Q LQM tDLVHLQP Y �DP F G SLHGWD K OW PRG ��2C� OW PRG PH1U WDQSP1OQIgRGQ � 1I 1Q �DLV �� T � �� T OH �� V�¢G g 1KK QOg gOH| ��LEJKG « LUL1Q DI1QU ¾GPROV _ Yb�

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h 1

2

θ

1 + 2 = h

h = 5

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