Question

If 1 + tan²25 = cosecc²A then A = ?​

Answer 1

Answer:

A = 65

1. 1 + tan²25 = cosecc²A
2. { 1 + tan²A = sec²A}
3. sec²25 = cosec²A
4. sec²25 = sec²(90-A)
5. cosec A= sec (90-A)
6. 25 =90-A
7. A=90-25
8. A =65

Answer 2

Answer:

A= 65

Step-by-step explanation:

1 + tan²25 = cosecc²A       [ 1 + tan²A = sec²A ]

sec²25 = cosec²A

sec²25 = sec²(90-A)

cosec A= sec (90-A)

25 =90-A

A=90-25

A =65