Answer:
The answer to your question is:
Step-by-step explanation:
1.-






2sec
2.-
sec²x - tanxsecx






To get more accurate results, and to measure the speed in words against time and see what is the speed every minute in a reliable form.
♥︎
Answer:
Step-by-step explanation:
acute triangle 60,60,60
right triangle 90,45,45
obtuse triangle 100.40,40