Please help i just need to know how to answer these kind of questions

Question

asked Dec 18, 2022 85.9k views

1 Answer

Nathan Do · Answer 1 · 2022-12-22T08:38:49+0000

Answer:

Since you didn't ask for the answer

Explanation:

sec(∆)=1/cos(∆)

For the above diagram,cos(∆)=15/17

sec(∆)=1/(15/17)

NOTE:I replaced theta