论文部分内容阅读
题已知sin2α=a,cos2α=b,求tan(α+π/4)的值.解法1 用正切半角公式,得解法2 使用正切的另一个半角公式,得
The problem is known as sin2α=a, cos2α=b, find the value of tan(α+π/4). Solving method 1 Use the tangent half-angle formula to get the solution 2 using the other half-angle formula of the tangent.