document.write( "Question 802915: Use fundamental identities to write the first expression in terms of the second, for any acute angle θ.
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Algebra.Com's Answer #484075 by lwsshak3(11628) $\"\"$ $\"About$

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Use fundamental identities to write the first expression in terms of the second, for any acute angle θ.
\n" ); document.write( "cos θ, cot θ
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\n" ); document.write( "cot^2θ=cos^2θ/sin^2θ
\n" ); document.write( "cot^2θ=cos^2θ/1-cos^2θ
\n" ); document.write( "cot^2θ(1-cos^2θ)=cos^2θ
\n" ); document.write( "cot^2θ-cot^2θ*cos^2θ=cos^2θ
\n" ); document.write( "cos^2θ+cot^2θ*cos^2θ=cot^2θ
\n" ); document.write( "cos^2θ(1+cot^2θ)=cot^2θ
\n" ); document.write( "cos^2θ=cot^2θ/(1+cot^2θ)
\n" ); document.write( "take sqrt of both sides
\n" ); document.write( "cosθ=cotθ/√(1+cot^2θ)
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