if secA=15/7 then find cosecA
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Answer: secA = cosecB = Explanation: Given. A+B = 90°. => A = 90°-B---( 1). and. /* From (1) */. /* We know that,. sec(90- B) ...
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Given sec A = 15/7
cos A = 1/sec A = 7/15
sin² A + cos²A = 1
sin²A + 49/225 = 1
sin²A = 1 - 49/225
sin²A = 176/225
sin²A = 4√(11)/15
sin A = ± 4√(11)/15
cosec A = 1/sin A = ± 15/4√(11)
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