9) Use the given right triangle to find cos A. B 6. A 4 A) cos A 3. 3. C) cos A = = 4 %3D B) cos A D) cos A = %3D %3D 4/5 3/5 8.

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A: Consider the given equation as tanθ=12

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A: Consider the trigonometric ratio, tanθ=-3, 0≤θ≤2π Use the information given about the angle θ,…

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Q: Given Cos = - , 90°LQ<186 2. So) puy

A: We will make use of the following trigonometric identity: cosθ = 2cos2(θ/2) - 1

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Q: cos2θ

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A: We have given   sinθ=-33 and 3π2&lt;θ&lt;2π cosθ=1-sin2θ=1--332=1-13=23 cosθ will be positive since…

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A:

Q: In this triangles, which ratio represents: CosR A. 5/13 B. 12/13 C. 12/5 D. 5/12 TanR A. 12/5 B.…

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A: Only 2nd quadrant is the only region where cosα is -ve and sinα is +ve

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Q: Complete the table below to prove that the two triangles are similar. If Then: AHEY- Then: AA E Ther

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Q: If A , B ,C are interior of triangle ABC ,then show that sin B+C 2 = COS 2

A: Use sum of angle of triangle

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A:

Q: In triangle ABC, 2C is a right angle. If cos(A) = and sin(A) = † , what is tan(A) ? %3D A) B)

A: tan(A)= sin(A)/cos(A)

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Q: Consider this right triangle. 25 R. 24 T. Select the ratio equivalent to cos(S). 7. 25 24 25 /7

A: The correct option is option (A)  The detailed solution is as follows below:

Q: Let (A) = and B = . Find the angle between BO and A D O 【cos) 2/√(30(21)) O [cos] ^(-1) 2/√(30(21))…

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A: Given,

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A: SOLUTION-

Q: In right ∆QRS, Angles Q and R are the acute angles. If tan Q = √51/7, determine cos R.

A: We have used the Pythagoras Theorem in this question.

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Q: π If y = cos*[sec? (30)], and (0 y will be equal to? = ;) 9.

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Q: 1. Express cos-as a cofunction of a complimentary angle 10"

A: we have the formula  sin(π/2 - x ) = cos x Now, we have given  :  cos3π/10 So , x = 3π/10

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A: