please help

Asked by satishcharan533 | 24th Sep, 2020, 02:50: PM

Expert Answer:

cosec2A - cot2A = 1 is true for all a between 0o and 90o
It is not true for A = 0 as sinA = 0 and cosA = 1

Answered by Renu Varma | 25th Sep, 2020, 11:55: AM