sed Multiple Pattern search and delete the line

ETC Homework & Coursework Questions
1

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!

  1. The problem statement, all variables and given/known data:
    I have file which has got the following content
    sam 123 LD 41
    sam 234 kp
    sam LD 41
    kam pu
    sam LD 61

Now I want to delete the line which contains sam and LD 41

  1. Relevant commands, code, scripts, algorithms:

No idea

  1. The attempts at a solution (include all code and scripts):

NA

  1. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):

Heritage Kolkata India
Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).

2

"No idea" doesn't really cut it. You must have some idea, else you clearly haven't been paying attention!