4 views
Data SciencePR
What is a Cost Function in Data Science in 2020
Login with Google Login with Discord
Hoang Giang Share
Janusz
办美国文凭加拿大文凭澳洲文凭英国文凭学位证毕业证成绩单
Veinas bọt EPE máy móc
Wendy Ye
![Prove that |[b^2 + c^2, a^2, a^2],[b^2, c^2 + a^2, b^2],[c^2, c^2, a^2 + b^2]| = 4a^2 b^2 c^2](http://i.ytimg.com/vi/IG15iLK0PtI/mqdefault.jpg "Prove that |[b^2 + c^2, a^2, a^2],[b^2, c^2 + a^2, b^2],[c^2, c^2, a^2 + b^2]| = 4a^2 b^2 c^2")
![Prove that |[1 +a^2 -b^2, 2ab, -2b],[2ab, 1-a^2 +b^2, 2a],[2b, -2a, 1-a^2 -b^2]| = (1 + a^2 + b^2)^3](http://i.ytimg.com/vi/B7UwIYXEcX8/mqdefault.jpg "Prove that |[1 +a^2 -b^2, 2ab, -2b],[2ab, 1-a^2 +b^2, 2a],[2b, -2a, 1-a^2 -b^2]| = (1 + a^2 + b^2)^3")
![Prove that |[a - b - c, 2a, 2a],[2b, b - c - a, 2b],[2c, 2c, c - a - b]| = (a + b +c)^3](http://i.ytimg.com/vi/F6Kll3fQIB0/mqdefault.jpg "Prove that |[a - b - c, 2a, 2a],[2b, b - c - a, 2b],[2c, 2c, c - a - b]| = (a + b +c)^3")
![[English subtitle] Guide for STANDARD F TSH-II](http://i.ytimg.com/vi/zf-844Ix6dw/mqdefault.jpg "[English subtitle] Guide for STANDARD F TSH-II")
![cos𝐴 − cos𝐵 = −2sin[(𝐴+𝐵)\/2]sin[(𝐴−𝐵)\/2] (4 of 6)](http://i.ytimg.com/vi/pOPWm5D6yBo/mqdefault.jpg "cos𝐴 − cos𝐵 = −2sin[(𝐴+𝐵)\/2]sin[(𝐴−𝐵)\/2] (4 of 6)")
![[English subtitle] Guide for STANDARD F SARS-CoV-2 Total nAb FIA, SARS-CoV-2 Variant nAb FIA](http://i.ytimg.com/vi/0tIxxr2cJf4/mqdefault.jpg "[English subtitle] Guide for STANDARD F SARS-CoV-2 Total nAb FIA, SARS-CoV-2 Variant nAb FIA")
![Find the value of a, if [[a-b,2a+c],[2a+b,3c+d]] = [[-1,5],[0,13]]](http://i.ytimg.com/vi/jeCnaP3haUk/mqdefault.jpg "Find the value of a, if [[a-b,2a+c],[2a+b,3c+d]] = [[-1,5],[0,13]]")