求值:(1-(sinx)^6-(cosx)^6)/(1-(sinx)^4-(cosx)^4)拜托各位大神RT 急
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![求值:(1-(sinx)^6-(cosx)^6)/(1-(sinx)^4-(cosx)^4)拜托各位大神RT 急](/uploads/image/z/13914129-57-9.jpg?t=%E6%B1%82%E5%80%BC%EF%BC%9A%EF%BC%881-%28sinx%29%5E6-%28cosx%29%5E6%29%2F%281-%28sinx%29%5E4-%28cosx%29%5E4%29%E6%8B%9C%E6%89%98%E5%90%84%E4%BD%8D%E5%A4%A7%E7%A5%9ERT+%E6%80%A5)
求值:(1-(sinx)^6-(cosx)^6)/(1-(sinx)^4-(cosx)^4)拜托各位大神RT 急
求值:(1-(sinx)^6-(cosx)^6)/(1-(sinx)^4-(cosx)^4)拜托各位大神
RT 急
求值:(1-(sinx)^6-(cosx)^6)/(1-(sinx)^4-(cosx)^4)拜托各位大神RT 急
原式=[1-(sin2"x+cos2"x)(sin4"x+cos4"x-sin2"xcos2"x)]/(1-sin4"x-cos4"x)= 1+ sin2"xcos2"x/(1-sin4"xcos4"x)