3. a. If f(x) = cos? 0 – 2 sin e,0< e< 2n, find where f is increasing, decreasing, intervals of concavity and inflection point(s). b. Find the absolute extrema of f(x) = 2 sin x- cos 2x on the interval [0, 27].

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A: Area of the parallelogram can be found by doubling the area of triangle ABC.

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A: z=1+3i  z=reiθwhere r  =12+(3)2   =1+3    =4  r  =2θ=tan-1(yx)   =tan-1(31)θ =π3

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Q: sin-(x) dr

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Q: Which set of values is the solution for sin x =- 0sxs27? a) -0.34 , 2.80 b) 5.94 , 3.48 c) 1.91 ,…

A: Since you have asked multiple question, we will solve the first question for you as per our guide…

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A: Topic = Triangle 15.96 units long is the hypotenuse.

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A: Given  u=i,   v=-4j

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A: From the data we have where supposed that the length of the shadow is x yards.

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A: 3)tanx-cotxtan2x-cot2x=sinxcosxL.H.Stanx-cotxtan2x-cot2x=tanx-cotxtanx+cotxtanx-cotx=1tanx+cotx=1sin…

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A: Follow the procedure given below.

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A: This question can be solved using the concept of polar coordinates.

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A: To find :The point bearing of B from A.We know that Obtuse angle is 90°&lt;x&lt;180°.

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Q: 6. DETAILS SPRECALC7 7.4.046. Solve the given equation. (Enter your answers as a comma-separated…

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A: sin(theta) = Perpendicular/Hypotenuse Cos(theta) = Base/Hypotenuse tan(theta) = Perpendicular/Base…

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A: Question is based on trigonometric ratios and angels.

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Q: (19) x² + 2x + I (x +1) (x+1) = Cx+i)? x² = | (x²+ 2% +1) t 2x+1. 2+2x+1 y2 /x² + 2x +l 2x +1 x2 %3D…

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A: Note :-As you mentioned here for solution only question no. 14 so i am solving only this.

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Q: III PERFORMANCE TASK 3.4 I Got You! Sum and Difference Formulas NAME: Grade 9- Score: Direction:…

A: The given statement,     sinA+BsinA-B=tanA+tanBtanA-tanB

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A: Note:- Here in your question in place of question mark there must be interval [0, 2π)  And equation…

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A: The given equation,      x2-4x+3=0