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Given: cos(90° - 2A). sec 76° = 1; find the value of angle A. |
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Answer»
Answer: I think it goes LIKE this: Sec = 1/cos cos 38 * 1/cos (90-2a) = 1 38(90-2a) = 1 3420 - 76a = 1 3420 = 76a 3420/76= a 45 = a!! |
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