Question 573655
For the given values of {{{ sin(alpha) }}} and {{{ cos(alpha) }}}, evaluate {{{ sin2(alpha) }}}, {{{ cos2(alpha) }}}, and {{{ tan2(alpha) }}}. {{{ sin1.23= .9425 }}} and {{{ cos1.23= .3342 }}}.
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Is that sin squared?  Or {{{sin(2*alpha)}}} ?