, cot x = 
← expand and simplify numerator
× 
Prove that: (1 + cos A)^2 - (1 - cos A)^2/
sin^2 A=
4cosec A. cotA...
Mathematics, 13.10.2020 23:01 jake9919
Prove that: (1 + cos A)^2 - (1 - cos A)^2/
sin^2 A=
4cosec A. cotA
Answers: 1
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