Mathematics, 10.10.2021 07:30 RachelCamel

Simplify (sec^2 - 1) (cse^2 -1)
The answer is given which is 1, Please explain how you get it

Answers: 3

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Simplify (sec^2 - 1) (cse^2 -1)
The answer is given which is 1, Please explain how you get it...