Gabriela needs to find the cosine of . If she knows that cos=, how can she use the double angle formula to find cos Show what she would do.

Q: Consider a right triangle with two other angles A and B.  Find the value of sin (A) if cos (A)=3/5?

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Q: Prove that an angle of 0 radians is constructible if and only if the real number cose(sine)…

A: Since θ is constructible, by definition, (cosθ, sinθ) is a constructible point.

Q: 17 8. A 15 3. B3

A: D option is right.  Cos beta = base/hypotonues                   = 8/17

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A: NOTE: Refresh your page if you can't see any equations. . the given point is so here we have

Q: jen draws two points, one at (-5√3, 5) and the other at (-10,-10√3). Use radian measure for all…

A: Let the Points be : A-53,5B(-10,-103)Their Poistion vectors are :A→=-53 i^+5 j^B→=-10i^-103…

Q: use an angle addition formula to determine cos (150). show your work

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Q: Explain in detail how you would solve the trigonometric equation: 5 cos o + 4 = 0 in the interval…

A: 5cos x+4=0

Q: 15. сos

A: Question 15,Given,         cos-112

Q: So I have pictures of the question and what I did so far. I still need another angle or side to use…

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Q: If a bicycle wheel makes 7 rotations a second and has a diameter of 75 cm, what cosine function…

A: A bicycle wheel makes 7 rotations a second and has a diameter of 75 cm.The standard equation is…