sinx = cos3x ∴ cos(90° - x) = cos3x 90° - x = ±3x k. 360° 4x ... | Filo
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sinx = cos3x ∴ cos(90° - x) = cos3x 90° - x = ±3x k. 360° 4x ... | Filo
Solution For sinx = cos3x ∴ cos(90° - x) = cos3x 90° - x = ±3x k. 360° 4x = 90° k. 360° or 2x = -90° k. 360° x = 22,5° k. 90° x = -45° k. 18
5.8K views10 months ago
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