Are there any schoolmasters? Please answer a math fill-in-the-blank question in the college entrance examination. 20 14 Shanghai college entrance examination science 12, the following is the topic, I
Are there any schoolmasters? Please answer a math fill-in-the-blank question in the college entrance examination. 20 14 Shanghai college entrance examination science 12, the following is the topic, I hope to give the analysis and process of ideas.
Sinx+ radical 3cosx = a ∴ 2sin (x+π/3) = a ∫ x ∈ (0,2π) ∴ x+π/3 ∈ (π/3,7π/3) ∫ There are three different real numbers. a/2 & lt； √3/2 is -2