document.write( "Question 342338: Proving trigonometric identities! Please prove this! :(( Thank you!
\n" ); document.write( "(1+cos3θ)^3/2 = 2sqrt(2) [1-sin^2 (3θ/2)] cos(3θ/2) \n" ); document.write( "

Algebra.Com's Answer #245108 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
(1+cos3θ)^3/2 = 2sqrt(2) [1-sin^2 (3θ/2)] cos(3θ/2)
\n" ); document.write( "-----------
\n" ); document.write( "(1+cos3θ)^3/2 is the exponent 3? or 3/2? \n" ); document.write( "

\n" );