document.write( "Question 502826: if cos^-1(-2/7)=x, find the exact value for each: sinx,cosx, tanx, cotx, secx,& cscx? \n" ); document.write( "
Algebra.Com's Answer #339043 by lwsshak3(11628)\"\" \"About 
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if cos^-1(-2/7)=x, find the exact value for each: sinx,cosx, tanx, cotx, secx,& cscx?
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\n" ); document.write( "cos^-1(-2/7) is an inverse cos function which says cos of angle x=-2/7, which means you are working with a reference angle x in quadrant II where cos is negative.
\n" ); document.write( "sin x=√45/7
\n" ); document.write( "cos x=-2/7 (given)
\n" ); document.write( "tan x=-√45/2
\n" ); document.write( "csc x=7√45/45
\n" ); document.write( "sec x=-7/2
\n" ); document.write( "cot x=-2√45/45
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