vì sao khi tính gdp người ta chỉ tính giá trị sản phẩm cuối cùng mà không tính giá trị của sản phẩm trung gian ? cho ví dụ cụ thể để giải thích

Step-by-step explanation:

Domestic product pr GDP. Problem of double counting refers to the adding the value of output more than once which could lead to overestimation and. Miscalculation. In order to avoid the problems of double counting while calculating GDP we should only include final products. Sp the right answer is

Counting only final products.

a

step-by-step explanation:

the answer is a

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)