方程cos(2x-π/3)=2sinπ/4的解集
方程cos(2x-π/3)=2sinπ/4的解集
數(shù)學(xué)人氣：570 ℃時(shí)間：2020-04-15 06:59:22
優(yōu)質(zhì)解答
題目?jī)?nèi)容有誤：等號(hào)右邊的值等于 2*√2/2=√2,而左邊的值不大于1,故這個(gè)方程有誤,或只能說這方程的解集為空集Φ.
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