The question is somewhat confusing but assuming you mean where the submarine is after moving up 7 meters then down 38 meters the submarine would now be located 56 meters below sea level
Merry Christmas and a happy new year
We will turn the left side into the right side.

Use the identity:



Now use the identity
solved for sin^2 x and for cos^2 x.




Answer:
zero dollars
Step-by-step explanation:
19+ (-19) simplifies to 19-19
19-19 equals 0