Bằng phương pháp hình học, hãy tìm nghiệm và giá trị tối ưu của bài toán qui hoạch tuyến tính sau đây:
Min f

(x) = −3x1 + x2


x1 + x2 ≤ 4
x2 − x1 ≥ −1
x1, x2 ≥ 0.

With these 5 geometry questions! pls 1.)quadrilateral abcd is inscribed in this circle.what is the measure of ∠a ? enter your answer in the box.°2.)quadrilateral abcd is inscribed in a circle.what is the measure of angle a? enter your answer in the box.m∠a= 3.)quadrilateral abcd is inscribed in this circle.what is the measure of angle b? enter your answer in the box.m∠b= °4.)quadrilateral abcd is inscribed in this circle.what is the measure of angle a? enter your answer in the box.°5.) quadrilateral abcd is inscribed in this circle.what is the measure of angle c? enter your answer in the box.°