4. Use an appropriate half angle identity to find the exact value of cos15°.

Q: In circle K, what is x?

A:

Q: Right A EFG has its right angle at F, EG = 8, and FG = 6. %3D What is the value of the trigonometric…

A:

Q: Solve the following triangles. Round angles to the nearest degree and sides to the nearest tenth of…

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Q: +sin- 2 Circle the correct answer. The exact value of sin is:

A:

Q: Assume that cos\theta =-(1)/(3) and \pi <\theta <(3\pi )/(2), find the exact value of sin\theta

A:

Q: Solve the equation in the interval [0°,360°]. Give solutions to the nearest tenth, if necessary? 4…

A: Solving the problem by finding the value of theta.

Q: A child returns a five-volume set of books to a bookshelf. The child is not able to read, and so…

A: Suppose a child who is not able to read returns a five-volume set of books to a bookshelf. Assume…

Q: -4 2 n = (-1, - 2) and D = 4 3. What is D n? Enter your answer as a vector by filling in the boxes.

A:

Q: consider the equation sin theta = -0.8 what is the reference angle for theta

A: Given query is to find the reference angel of theta.

Q: Use your calculator to find the degree value of the function: tan 1 Please round your answer to the…

A:

Q: 3. (x²-x+6)÷( x- 3)

A: Here we have to divide it.

Q: Зя , what are the values of sin e and tan e? What is e in degrees and radians? Be sure to show and…

A:

Q: 2n3+25n2+32n-15 6n +2n3-11n2-2n+17' The nth term of a sequence is represented by What is the limit…

A: make n tends to infinity and take out the common terms from numerator and denominator.

Q: 3. Prove the following identity (sin* Ø – cos* Ø) 1 = tan Ø sinø cosØ – cos²Ø

A:

Q: 2 a) Is it possible to solve the given triangle by using the sine law? Explain. (Include the formula…

A:

Q: secx 1. cotx %3D tanx csc 0- cot 0 2. sec 0-1 = cot 0 COS X 3. = sec x+ tanx Sinx 4. cot 0 +tan 0 =…

A:

Q: Find the area of the triangle having the given measurements. A= 48°, b=17 feet, c= 42 feet

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Q: Establish the identity. 1 1 = 2 sec20 1 sin 0 1+ sin 0

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Q: The height of the rectangle below is c – 6. The expression inside the rectangle represents the are…

A:

Q: Find a value of θ in the interval ​[0°​,90°​] that satisfies the given statement.   sin θ=0.62016401

A:

Q: Determine whether the statement makes sense or does not make sense, and explain your reasoning.…

A: There are similarities and differences between solving 2x+7=3 and 2sinθ+7=3. In the first equation…

Q: b) cos 2B

A: using  cos(2B)=cos2B-sin2B ....(1)

Q: -sin? 0-sin? 0- sin 0 A) 0, 5л 5л B) 0, 4. 5x C) 5x 7x D) 4 4 D. BA

A: We have to choose correct option.

Q: 1. Solve all possible and draw all possible triangles ABC given: a-3,0cm, b-5.5cm, <A-30, Round side…

A: We can use sine rule to find the sides and angles of triangle.

Q: For the pair of vectors, find U + V, U – V, and 3U – 4V. U = (3, 1), V = (-6, 2) U + V = U - v = 3U…

A:

Q: •sin ² (x/2) = = (tan x sin x)/ 2tan x = sin ² (x/2) •tan x - cot x = - 2cot 2x •sin ² (x/2) = (sin…

A: 3) sin2x2=sinx tanx22=sin2x2 4) sin2x=2cos2(x/2)1-cosx=sin2x 5) 2sinx-sin2x/(2sinx+sin2x)=tan2x/2

Q: 4. Rewrite the equation y =x² as a polar equation

A: Given: y=x2

Q: true or false: the amplitude of y=sec x is 1

A:

Q: Solve the triangle. A= 41°, b = 5, c = 6 b=5 410 c=6 (Do not round until the final answer. Then…

A: This question can be solved using the concept of sine and cosine rule.

Q: 10. Find the exact value of cos 0- VE+4 (a) E -4 1 (c) (b) (d) (e) none of these -- 3 4 3 2

A: Given query is to find the value of indicated trigonometric function.

Q: Is (x+3) a factor of 2x2 + 7x + 3

A:

Q: 7. An 8-m ladder must be placed against a wall such that the base of the ladder makes a 60° angle to…

A: (7)

Q: 1. Two Angles and a Side Solve APQR, where R= 68°, Q = 69°, and p = 21 cm %3D

A:

Q: Graph the polar equation 8. 2+4cos 0 A.. Write the equation in one of the standard forms dentify the…

A:

Q: Use the sum-to-product identities to rewrite the following expression as a product.…

A:

Q: 2. Let 0 be an angle in standard position such that sin(0) : It is also known that 0 is in the…

A:

Q: 2. Explain the difference between sin(2x), 2sin (x) and sin? (x).

A: Follow step 2

Q: Solve for x. 18 15 10 D 8 O 12 O 15 O 11

A: We know that, If two chords intersect in a circle , then the products of the measures of the…

Q: P. Ervic calculates the angle of elevation to the peak of Mt. Malamig to be 35°. 4. As he walks 1200…

A:

Q: plve the following word problems. 1. The angle of elevation to the top of a building is found to be…

A:

Q: What is the rectangular equivalence to the parametric equations? x (0) = 2 sin 0+ 1, y (0) = 3 cos…

A: The parametric equations,   xθ=2 sinθ+1, y(θ)=3 cosθ-2

Q: 11 60

A: Use Trigonometric ratios concept

Q: Michelle is stadning on the rooftop of the seda hotael, looking at abreeza mall in the distance. The…

A: According to the given problem, the representative diagram is shown below; Let  the distance from…

Q: Multiply. V3 블 cis (종)· cis (폴쪽) o 2 cis (플) 2л Зл 2 4 3/2 8. cis (31z) 8 18 3/2 cis (31z) 8. 18 2V3…

A: We have to multiply 32cis2π9·64cis3π2

Q: 24 in. 14 in. 6 in. - 54 in.

A: Given query is to find the area of the Design.

Q: 1. A vector is a quantity that has both a and a A vector can be represented geometrically as an What…

A:

Q: Find the complex cube roots of 27 (cos 306° + ? sin 306°)

A:

Q: 557 9. Given sin 0 = what is cos 0? 2√6 5√6 a. b. C. 7 √6 10. Given sin 0= what is tan 0? 2√6 5 a.…

A: 10)sin θ =57cos θ= 1-sin2θ        =1-572        =1-2549        =247cosθ =267…

Q: Find an equation of the parabola with vertex (-2,-4) and directrix y=-9.

A: given vertex (h,k)=(-2,-4) h=-2,k=-4 directrix y=k-p=-9                  p=k+9                p=-4+9…

Q: 5. For the given triangle, cos A is equal to which expression? A 4 В 3 D 3 20 cm 15 cm 415 3/4

A: We can solve question-5 as below.