Course3 week4 exercise 3 triplet loss

@Mubsi @arvyzukai @anchyzas @ARNAV_GUPTA1 @balaji.ambresh
I have tried so many ways but i am not getting correct out put value onece its getting 1.75anothet tym its getting 3.75 but i am not getting correct output value can any of you solve the problem
Wrong output.
Expected 0.703507661819458.
Got 1.0
5 Tests passed
1 Tests failed

Please click my name and message your notebook as an attachment.

i have sent my notebook can you please check once

Thank you. I have an older version of the assignment. If you need my help, please reply with w4_unittest.py . You can find it inside the coursera jupyter environment.