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  1. SOLUTION: Please help me with this equation. Find sin (2x), cos (2x ...

    you have x = 126.8698976 degrees. 2x is therefore equal to 253.7397953 degrees. sin (that) = -.96 cos (that) = -.28 tan (that) = 3.428571429. these values agree with what we got earlier using the double …

  2. SOLUTION: Triangle XYZ was dilated by a scale factor of 2 to create ...

    You can put this solution on YOUR website! Part A: Find cos assuming you need to find using formula In triangle , is the adjacent side to angle , and is the hypotenuse. we are given and now, compare to in …

  3. SOLUTION: sin (x)=1/3, find cos (x) - Algebra Homework Help

    cos (x) = sqrt (8)/3. you can also find it by using the right triangle as your guide. let your right triangle be ABC with the right angle at C. a diagram of your triangle is shown below: in this diagram, you can …

  4. SOLUTION: Find sin 2x, cos 2x, and tan 2x from the given information ...

    Question 924316: Find sin 2x, cos 2x, and tan 2x from the given information. csc x = 6, tan x < 0 sin 2x = cos 2x = tan 2x = please help Thank you Answer by lwsshak3 (11628) (Show Source):

  5. SOLUTION: If sin (theta)=3/7, And Theta¸ Is In Quadrant II, Then Find ...

    Answers archive Click here to see ALL problems on Trigonometry-basics Question 1155696: If sin (theta)=3/7, And Theta¸ Is In Quadrant II, Then Find cos (theta)= tan (theta)= csc (theta)= cot …

  6. SOLUTION: Find sin 2x, cos 2x, and tan 2x from the given information ...

    Question 967183: Find sin 2x, cos 2x, and tan 2x from the given information. sec x = 4, x in Quadrant IV sin 2x = cos 2x = tan 2x = Answer by Theo (13342) (Show Source):

  7. SOLUTION: If sin (t)=2/3, and t is in quadrant II, find cos (t), sec (t ...

    You can put this solution on YOUR website! I'll use the greek letter (pronounced "theta") in place of t because theta is often used in trig. sin (theta) = 2/3 sine = opposite/hypotenuse We could say …

  8. SOLUTION: find value of: cos (2π/7)+cos (4π/7)+cos (6π/7)

    You can put this solution on YOUR website! Answer: -1/2 Explanation Each term of cos (2pi/7)+cos (4pi/7)+cos (6pi/7) is of the form cos (2k*pi/7) where k is from the set {1,2,3} It might not be entirely …

  9. Lesson Solve these trigonometry problems without using a calculator

    Solve these trigonometry problems without using a calculator Problem 1 If sin (x) + cos (x) = - and <= x <= , find the value of cos (2x). Solve without using a ...

  10. SOLUTION: Find cos θ if sin θ = 1/2 and θ terminates in QII.

    Question 1163966: Find cos θ if sin θ = 1/2 and θ terminates in QII. Answer by ikleyn (52357) (Show Source):