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Section 7.8 Trigonometric Equations (II)

Section 7.8 Trigonometric Equations (II). Convert sin 2 x to cos 2 x: easy Convert sin to cos: difficult. Get the answer correct: priceless. is impossible. One of the cosine double-angle formulas involves only cosines, no sines. Convert sin2x to cos2x: easy Convert sin to cos: difficult.

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Section 7.8 Trigonometric Equations (II)

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  1. Section 7.8 Trigonometric Equations (II)

  2. Convert sin2x to cos2x: easy Convert sin to cos: difficult Get the answer correct: priceless.

  3. is impossible One of the cosine double-angle formulas involves only cosines, no sines.

  4. Convert sin2x to cos2x: easy Convert sin to cos: difficult No real solutions.

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