document.write( "Question 592372: Write the trigonometric expression as an algebraic expression in u.
\n" ); document.write( "15) cos (sin-1 u) \n" ); document.write( "

Algebra.Com's Answer #375940 by lwsshak3(11628) $\"\"$ $\"About$

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Write the trigonometric expression as an algebraic expression in u.
\n" ); document.write( "15) cos (sin-1 u)
\n" ); document.write( "**
\n" ); document.write( "(sin-1 u) is an angle whose sin=u/1 (opposite side/hypotenuse)
\n" ); document.write( "The adjacent side for this angle would then be=√(1^2-u^2)=√(1-u^2) (by pythagorean theorem)
\n" ); document.write( "Thus, cos (sin-1 u)=√(1-u^2)/1 =√(1-u^2) \n" ); document.write( "

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