‚€‚ρ acos {@( cos ΜΨΡ· ) € γ( 1 { ( Ί³Κή² ) * ( Ί³Κή² ))@} acos {@( cos @ƒΖ ) € γ( 1 { ( ‚i ) * ( ‚i ))@} acos {@( cos Ό°ΐ ) € γ( 1 { ( Όήͺ²@‚ ) * ( Όήͺ²@‚ ))@} acos {@( cos -46‚Η ) € γ( 1 { ( ΐέ²cm ^ ‚) * ( ΐέ²cm ^ ‚))@} acos {@( cos -46‚Η ) € γ( 1 { ( 71 € 100 ) * ( 71 € 100 ))@} acos {@( cos -46‚Η ) € γ( 1 { ( 0.71 ) * ( 0.71 ))@} acos {@( 0.694 .. ) € γ( 1 { ( 0.5041 ))@} acos {@( 0.694 .. ) € γ( 1.5041 )@} acos {@( 0.694 .. ) € ( 1.226 .. )@} acos {@( 0.566 .. )@} acos 0.566 .. Ϊ 55.50 ‚Η 55.499556547925864674838868336207 ‚Η