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(sin^2 (22 1/2)^@ + cos^2 (22 1/2)^@ )/(...

` (sin^2 (22 1/2)^@ + cos^2 (22 1/2)^@ )/(sin^2 (44 1/2)^@ + cos^2 (44 1/2)^@)`

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sin [22(1/2)]^o is:

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Prove that: ((1) / (sec ^ (2) A-cos ^ (2) A) + (1) / (cos ec ^ (2) A-sin ^ (2) A)) sin ^ (2) A cos ^ (2) A = (1-sin ^ (2) A cos ^ (2) A) / (2 + sin ^ (2) A cos ^ (2) A)

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