Find the exact value of the expression. 11T cos 12

Q: tan (2a) = ? For all values of a for which the expression is defined, cos?a Select the correct…

A: We know that  tan 2x = 2tanx / 1- tan^2x Hence option (B) is correct.

Q: Make the indicated trigonometric substitution in the given algebraic expression and simplify (see…

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Q: Verify the identity. (Simplify at each step.) 5 sin2 α-5 sint α-5 cos? α-5cos*α 5 sin? a – 5 sin“ a…

A: Given

Q: 4. In the right triangle ABC shown below, what is the value of cos A? 16 B. b. 12 20 C. d. 4.

A: To find the value of cosA

Q: LARTRIG10 1.7.053. Find the exact value of the expression, if possible. (If not possible, enter…

A: We have to find the exact value of the given trigonometric expression.

Q: Use identities to find the value of the expression. If Bin o = 0.45, find cos CT/2-e). 61e sin@ -…

A: Given  a)sinθ=0.45b)sin(θ-π2)=0.73

Q: 1. Which of these formulas can be used in solving cos without using the calculator? C.…

A: Solution: consider the given trigonometric ratio  cos 7π12 so, cos 7π12 = cos3π12+4π12cos3π12+4π12 =…

Q: 3 You are given that cos(A) Quadrant I, and sin(B) Quadrant III. Find cos(A – B). Give your answer…

A: Given,  cosA = 35 ;  A is in quadrant I  sinB = -2425  ;  B is in quadrant III We have to find…

Q: Verify the identity. (Simplify at each step.) 2 sin? a – 2 sin4 a = 2 cos? a - 2 cos4 a sin? a – 2…

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Q: What is the exact value of the expression sec60° + csc30° ? 3√2 A. B. C. 1 D. 4 Find the exact value…

A: We determine the exact value of the given expression

Q: Suppose 80 e [7, 27] and cos 80 = find the value of cos 40, csc 40, and cot 40.

A:

Q: 4 and cot A < 0, then find cos 2a. 5' If sin a = - 7. B. 25 7. D.-25 В. Z 24 A. 25 24 С. 25

A: sin α=-45  &amp;  cot α&lt;0

Q: 5 You are given that cos(A): with A in 13' 5 Quadrant III, and sin(B) = , with B in Quadrant I. Find…

A: We have to find trigonometric  fraction

Q: 5 You are given that cos(A) , with A in - Quadrant II, and sin(B) = , with B in Quadrant 13' 7 25'…

A: We are given that cos(A)=-513, with A in quadrant II, and sin(B)=725, with B in quadrant II. So,…

Q: Find all solutions of the equation 2 cos x + V3 = 0. The answer is A + Bka and C + Dkr where k is…

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Q: Find all solutions of the equation 2 cos a – 1 = 0. The answer is A + Bkm and C + DkT where k is any…

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Q: "III. Find the value of the expression. 12.) csc 300• cos 60 sec 150° · sin 120°

A: SOLUTION-

Q: 7. If cos 0= where 0< a< 2, what is csc 0? 2 A) +- C) 4-a a В) + D) +- 4-a 2.

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Q: Use a double-angle identity to find the exact value of the expression. 2 cos 267.5° - 1 Choose the…

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Q: Find the expression identical to the one given. 2 cos? (0/2) - sec? e cot e-1

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Q: 12. Use a calculator to find values of y in degrees. a. cos (.5) b. sec (-2.46) c. tan (-45.543) COS…

A: Given, Part (a):

Q: Find all solutions of the equation 2 cos (x) – 1 = 0 on the interval [0, 27) The answer is A, B, C,…

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Q: a+vb So the value of a + b + c is. 4. If cos 36° A. 8 В. 10 С. 12 D. 15 Е. 18

A: Given PROBLEM:- cos(36°) =(a+√b)/c Find :- Value of a+b+c

Q: EXAM-STYLE QUESTIONS 6 The expression 2sin 3x cos 3x can be written in the form sin kx. Find the…

A: It is given that the expression cos4x can be written in the form 1-bsin2xcos2x. The objective is to…

Q: Select the correct answer. 7 What is the approximate value of 8, if cos 8 = 9? O A. 38° О в. 52° Ос.…

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Q: 19. Using the appropriate special triangle, determine e if 0° ses 90° for cos e= -12] а. 30° b. 60°…

A: Answer  a ) 30°

Q: 15 8 C 17 A B.

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Q: Verify the identity. (Simplify at each step.) (1 + cos a)(1 – cos a) = sin? a (1 + cos a)(1 – cos a)…

A: Given:  1+cos α1-cos α=sin2 α To Find: To verify the given identity.

Q: 4. Without a calculator, find all the exact values. 2 cos? a - 5 cos a 3

A: Given trigonometric equation is

Q: Use the given information to find the exact value of the expression. 20 a lies in quadrant I, and…

A: Here given that value of sin(Alpha) and cos( beta) and we find value of cos (Alpha + beta). Here i…

Q: Approximate the value to the nearest thousandth Cos 49°

A: Answer : The approximate value of cos(49°) to the nearest thousandth is written as ;    Cos(49°) =…

Q: Find the exact value of the expression. 9) cos-1 A) 47 3 B) 7

A: Given the expression

Q: wa triangle that is described by the equations b- asurement. Then, find the value of the unknown p…

A: Note- Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: VA(VB +1) Use an addition or subtraction formula to find the exact value of cos 12 4 A B = Add Work…

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Q: Find the exact value of the expression, if possible. (If not possible, enter IMPOSSIBLE.) 63 csc cos…

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Q: If cos e = and tan e < 0, 25 what is the value of csce? 25 24 A B 24 25 24 25 C D 25 24

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Q: sin? e 7. Which of the following is the equivalent of sec2 e-1 A. sec?e B. tan? e C. cos?O D. 0

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Q: If the terminal side of a contains the point (-3, 4) and the terminal side of B contains the point…

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Q: CRITICAL THINKING Find the EXACT expressions for the indicated quantities, given that cos 22.5 =…

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Q: Simplify the expression. Do not evaluate. 2 cos?(37°) – 1 cos(36)

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Q: A. Written Works Find the numerical value of each expression. 1. sin 30° - cos 60°

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Q: simplest terms. 34 D. V69 35 Cos E sin D cos E and sin D

A: We have to find the trigonometry ration  cosE and sinD

Q: Use the given information to find the exact value of the expression. 24 a lies in quadrant II, and…

A:

Q: If cos A/3=√3/2,find the value of cosA

A: The cosine value of any function is equal to the ratio of the base of the triangle to the hypotenuse…

Q: Given: sing = and cos x = -; evaluate the following expression. (A: Quadrant I, x : Quadrant II.)…

A: Multiple angles

Q: В 3 C 4 A Find cos(B) in the triangle.

A: Since cos(x) is in the ratio of base and hypotenuse

Q: Determine wo, R, and 8 so as to write the given expression in the form u R cos(wot - 8). = u= -5…

A: We simply convert the given equation in its general format.

Q: You are given that cos(A) = -, with A in Quadrant II, and sin(B) = , with B in Quadrant II. Find…

A: First use identity to find value of cosB and sinAsinA Use formula for value

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.