19 and 20 Show that the equation has exactly one real root. 19. 2x cos x = 0

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A: given 4sin θ-2=-6.25 simplify 4sin θ-2=-6.25sin θ-2=-6.254sin θ-2=-1.5625sin θ=-1.5625+2

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Q: 口 5. Given 0 < 0 < 2T, solve-2 sin 0+ cos 0 +1 = 0. 5T O 0, 5, 7, 57 , T, 3 0, T

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Q: 19. Given 0 <0 < 2T, solve 2 cos² 0 +3 sin 0 = 3. ○ 등, 똥 6 6 ○ , 풍,풍 ○ , 풍, 똥 5w 6 ○ 풍, 풍 11.

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Q: 9. Find all values of x in the interval [0,360°) that satisfy each equation. Round approximate…

A: a) 2sinx=cosxsinxcosx=12tanx=12x=tan-112x=26.6°, 180°+26.6°x=26.6°, 206.6°

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