Mathematics, 22.02.2021 17:30, braddypeter61

CosecA=(m^2-n^2)÷(m^2+n^2)
then prove m² +n2
- 2mn Sec A
=

Answers: 3

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CosecA=(m^2-n^2)÷(m^2+n^2)
then prove m² +n2
- 2mn Sec A
=...