化简cos^2(-α)-[tan(360°+α)/sin(-α)]

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化简cos^2(-α)-[tan(360°+α)/sin(-α)]化简cos^2(-α)-[tan(360°+α)/sin(-α)]化简cos^2(-α)-[tan(360°+α)/sin(-α)]c

化简cos^2(-α)-[tan(360°+α)/sin(-α)]
化简cos^2(-α)-[tan(360°+α)/sin(-α)]

化简cos^2(-α)-[tan(360°+α)/sin(-α)]
cos^2(-α)-[tan(360°+α)/sin(-α)]
=cos^2(α)+tanα/sinα
=cos^2(α)+1/cosα
这已经是够简的了,若还有问题可以直接HI我.