化简cos^2(-α)-[tan(360°+α)/sin(-α)]
化简cos^2(-α)-[tan(360°+α)/sin(-α)]
化简,cos²(-α)-tan(360°+α)/sin(-α)
化简:(sin²αtanα+cos²α/tanα+2sinαcosα)sinαcosα
化简(sinα)^2tanα+cosα+(cosα)^2*1/tanα+2sinαcosα
化简:tanα*(cosα-sinα)+[sinα(sinα+tanα)/1+cosα]
化简:tanα(cosα-sinα)+sinα(sinα+tanα)/1+cosα.
化简:sin^2α×tanα+cos^2α×cotα+2sinα×cosα
化简:sin^(-α)-tan(360-α)tan(-α)-sin(180-α)cos(360-α)tan(180+α)
化简:[sin(π+α)*cos(π-α)*tan(π-α)]/[cos(π/2+α)*tan(3π/2-α)*tan(
化简:[cos(α/2)+sin(α/2)][cos(α/2)-sin(α/2)][1+tanαtan(α/2)]
化简sin^2α*tanα+cos^2α*1/tanα+2sinα*cosα
化简tanα(cosα-sinα)+(sinα+tanα)/(cotα+cscα)