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Equations involving cos, sin, sec, csc, cot
Questions (1)
i have a few questions
cosx + cosx =2secx ----- ----- 1+sinx 1-sinx cos(x-B)-cos(x-B) = 2sinxsinB csc2x= 1 secx cscx --- 2 cotx=
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jessika
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Trigonometric Equations
