3. Determine approximate solutions for each equation in the interval 2xin [0,π], to the nearest hundreedth of radian a) sin2x-0.8 = 0 b)5 sin 2x-3 = 0

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Q: (43) (a) Express 3° in radians. (b) Express T in degrees.

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Q: Cannot solve

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A: Given: (1)   cos2π8-sin2π8 (2)  2sin13∘ cos13∘

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A: The given trigonometric equation is  2sinx = 4cosx-1tanx

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Q: 2. Give the exact value of the principle root in radians of "simplify the radical 3+ 2/2 sin 0 = 5.

A: Given,