cos³x-sin³x-cos²x+sin²x+sinxcosx=0怎么解cos³x-sin³x-cos²x+sin²x+sinxcosx=0 ?
问题描述:
cos³x-sin³x-cos²x+sin²x+sinxcosx=0怎么解
cos³x-sin³x-cos²x+sin²x+sinxcosx=0 ?
答
cos³x-sin³x-cos²x+sin²x+sinxcosx=0怎么解
cos³x-sin³x-cos²x+sin²x+sinxcosx=0 ?