Question

7. if x cosA = 1 and y cotA = 1, prove that x² - y² = 1. (using identity)​

Answer 1

Answer:

your answer given in the above fig .

hope this answer will help u !

Answer 2

(1/cos square A ) - (1/cot square A) =1
Sec square A - tan square A = 1 [property]

Hope this will help...