If two nonzero vectors are perpendicular, then the angle between them is 90°. Also, the cosine of 90° is always zero. What does this tell us about the dot product of two perpendicular vectors? Explain.

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A: Here is the solution:

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A: Solution…

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Q: 3.3 What is tan 0? Use the figure below. ROUND OFF YOUR ANSWER TO TWO DECIMA PLACES. * 7 14

A: Note:- Since you have asked multiple question As per our policy, we will solve the first question…

Q: Prove the identity. cos8x+cos2x / sin8x+sin2x = cot5x

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A: The figure below is a diagram that shows how Colleen estimates the height of a tree that is on the…

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A: Given: f(x)=x3-2

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A: Given complex number z=-72+723 i

Q: 4. Given 0 < 0< 2T, solve 2 csc x = 3 csc 0- csc0 sin 0. 2 O O

A: Here we have to solve        2 csc(x) = 3 csc(θ) - csc(θ)sin(θ)

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A: Given query is to find the measure of angle angle.

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A: Solve the given

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Q: Calculate the value of side p. () 43° 35m

A: We know that cosθ=Adjacent sideHypotenusecos(43)=35p

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A: Given problem:-

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A: Let's find.

Q: 35) if tan(AiB=3and tanB= 1 find tanA

A: Using tan(A+B) formula

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Q: cosA cosB cosc 7) Use the Law of Cosines to prove the following identity z° +z9 +zD a b 2abc

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Q: Prove the identity. cosx-sinx/sinx cosx = cscx-secx

A: See below the answer and explanation

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A: Given

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A: Given problem:- solve for 0≤θ&lt;2π  -sin(θ) =√3 sin(θ/2)

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A: Given

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A: follow next step

Q: 1 1+ cos x 9. 1- cos x || sin? |

A: We can verify the statement as below.

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Q: Find all solutions to the equation below in the interval (−2π,0]. Give all answers as exact values…

A: Solve the following

Q: 5. Plot the following polar coordinates on the polar grid. A(6,45°), B(-2, -), c(4,-240°), D(-2,–n)

A: This is a problem related to pilar coordinates in the grid. Please find the solution below in image.…

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Q: Find the cos 43.5°

A: We can solve this as follows:

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