document.write( "Question 761476: I need help please im practicing for exams\r
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\n" ); document.write( "\n" ); document.write( "1.)Find the absolute value of the complex number z=-8-12i
\n" ); document.write( "2)The exact value of sec 3pie/2 is what?
\n" ); document.write( "3)What is the domain of the function f(x)=tan x
\n" ); document.write( "4)Find the exac value of sin inverse (sin 5pie/4)
\n" ); document.write( "5)whats the equivalence expression for the composition cot(arctan x)
\n" ); document.write( "6)whats the period of y=cos2x?
\n" ); document.write( "7)the phase shift of y=2sin(x+3)+1
\n" ); document.write( "8)The central angle theta subtended by an arc of length s=6cm on a circle of radius r=2cm find the area of the sectoe determined by theta.
\n" ); document.write( "16)csc78 deg 24’ is equivalent to what trigometric function
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Algebra.Com's Answer #463250 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
The absolute value of a complex number \"z=a%2Bbi\" is written as \"abs%28z%29\"\r
\n" ); document.write( "\n" ); document.write( "It is a nonnegative real number defined as:\r
\n" ); document.write( "\n" ); document.write( "\"abs%28z%29=sqrt%28a%5E2%2Bb%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( " the absolute value of the complex number \"z=-8-12i\" will be\r
\n" ); document.write( "\n" ); document.write( "\"abs%28z%29=sqrt%28%28-8%29%5E2%2B%28-12%29%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"abs%28z%29=sqrt%2864%2B144%29\"\r
\n" ); document.write( "\n" ); document.write( "\"abs%28z%29=sqrt%28208%29\"\r
\n" ); document.write( "\n" ); document.write( "\"abs%28z%29=sqrt%2816%2A13%29\"\r
\n" ); document.write( "\n" ); document.write( "\"abs%28z%29=4sqrt%2813%29\"\r
\n" ); document.write( "\n" ); document.write( "2) The exact value of \"sec+%283pi%2F2%29\" is \"infinity\"\r
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\n" ); document.write( "\n" ); document.write( "3) What is the domain of the function \"f%28x%29=tan+%28x%29\"\r
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\n" ); document.write( "\n" ); document.write( "4)Find the exact value of sin inverse (sin 5pie/4)\r
\n" ); document.write( "\n" ); document.write( " \"sin%5E-1+%28sin+%285pi%2F4%29%29=-pi%2F4\" (result in radians)\r
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\n" ); document.write( "\n" ); document.write( "5) whats the equivalence expression for the composition cot(arctan x)\r
\n" ); document.write( "\n" ); document.write( " \"cot%28arctan+%28x%29%29=cot%28tan%5E-1+%28x%29%29=1%2Fx\"\r
\n" ); document.write( "\n" ); document.write( "6) whats the period of \"y=cos%282x%29\"?\r
\n" ); document.write( "\n" ); document.write( "periodic in \"x\" with period \"pi\"\r
\n" ); document.write( "\n" ); document.write( "7) the phase shift of \"y=2sin%28x%2B3%29%2B1\"\r
\n" ); document.write( "\n" ); document.write( "it is periodic in \"x\" with period \"2pi\"\r
\n" ); document.write( "\n" ); document.write( "phase shift: \"3\"
\n" ); document.write( "vertical shift: \"1\"\r
\n" ); document.write( "\n" ); document.write( "8)The central angle theta subtended by an arc of length s=6cm on a circle of radius r=2cm
\n" ); document.write( "find the area of the sector determined by theta.\r
\n" ); document.write( "\n" ); document.write( " circle central angle \"theta=s%2Fr\"
\n" ); document.write( "\"theta=6cm%2F2cm\"
\n" ); document.write( "\"theta=3\"\r
\n" ); document.write( "\n" ); document.write( "16)csc78 deg 24’ is equivalent to what trigonometric function\r
\n" ); document.write( "\n" ); document.write( "\"78\"° \"24\"’ =\"78.4\"°
\n" ); document.write( "\"csc%2878.4%29\"°=\"1.020851\"
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