document.write( "Question 879291: prove sec pi/2 - thetha = csc theta using sum of difference formula \n" ); document.write( "
Algebra.Com's Answer #530722 by lwsshak3(11628)\"\" \"About 
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prove sec pi/2 - thetha = csc theta using sum of difference formula
\n" ); document.write( "\"sec%28pi%2F2-x%29=1%2Fcos%28pi%2F2-x%29=1%2Fsinx=cscx\"
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