Quiz 6 - \g tu g 3.t - =- r(1 cos.r 1+sinx rn'i1tif1C1i 1-...

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(^" 0 ,t (D(d tilb {^ e .. ::SP d.*c" O c-o( ta )- c (9a'P { "" (-o) - _€a_ E Precalculus February 26,2010 L. Brubaker All work must be shown to receive credit. L (2 points) Write the function cos.r in terms of tan x . 8l,t |L.'o -- ( o-^ 'o + \ C-2f {: I 4a=-C + I kt -o goe? o .( _-,*6, + \ 2. (2 points) Show that the following equation is not an identity: ,/ cos(20) = 2cos0. 6= I9o ]'.: X= 9;n 12/ bs(Lo\" z bt G C,o:(z','); 2 "C^>9 U cos(qo\ =z'(''<ee) oi-zu { t'qzz- Lu Y_. l2 J;7 ,z i tL I t' J, rz U7 .L ,^-- D,ge 6 3. (6 points) Verify that the following equations are identities: . I - sin x cosx_ ryr ur t \ rfi
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Unformatted text preview: \g tu g 3.t - =- r(1 cos.r 1+sinx rn'i1tif1C1i 1- 41rr,X. I tg ttx 1 c:lJ( il$rr{, ,;^{ Cn l/ t4 t/, l- qttr t r-1--- \ cr'S,( it(itlK/ =-- tr iri'X 1ii-x7t<'n'^j Ss;/-I I (i i'rx I - 5;^x / \ Grt coSr - t Cof)-1r* *'\ &r'-d-.nJ ,, c)( - ta,^x (rcl x c^2J/ f 1< \-.o 2 he{ l_ t-i l,^* | ,-----'l-(uf { GJ{ 9;^ A t-\ cotx-tanx cuJT{-) I - 9'rn/-t ! t )-t" ( 9',-,0 c--cs0 b) = SInXCOSX cotz x -tan2 x (-+ 4 ' t '-'* ) (*l { - t"* *\ 9;**a" *\ c,i+ I I 1a'^{ c-9'6 + S;",,'Q 7', n0(a( O c oszb * tlk'o-\...
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This note was uploaded on 05/14/2010 for the course MATH 3450:149 taught by Professor Brubaker,lauren during the Spring '10 term at Kent State.

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