ブn日-219 Cos?0 2.

Q: Find the exact value of the expression. cos 25

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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: Use the power reducing formulas to rewrite the expression in terms of first powers of the cosines of…

A: Given expression sin4(5x) cos2(5x)we have to rewrite the expression using the power reducing…

Q: Multiply. Leave the answer in trigonometric form. 2(cos 15° + i sin 15°) · 6(cos 20° + i sin 20°)

A: Given that 2(cos 15° + i sin 15°) · 6(cos 20° + i sin 20°). We need to multiply the above equation.…

Q: (1) 1-. cscx cos x

A: Since you have asked multiple questions in a single request so we will be answering only first…

Q: Use the fundamental identities to simplify the expression. *You must show work for this problem to…

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Q: simplify the expression.  Do not evaluate 10sin(9x)cos(9x)

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Q: Write the given expression in terms of x and y only. sin(tan-1 x – tan-1 y)

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Q: 1+ tan´ x 2 = tan² x csc? x

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Q: If 0 is an angle in standard position and its terminal side passes through the point (-8,15), find…

A: The solution is:

Q: tan(cos(e2) + cosh(2 + j3))

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Q: Evaluate without using a calculator. 7x cos-1(cos X Need Help? Submit Answer Read It

A: Given;  Cos-1[Cos(7pi/4)].

Q: Find all angles, 0° <0< 360°, that satisfy the equation below. -2 cos (20) - 5 = -4 sin(0) – 8

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Q: Use de Moivre's Theorem to find the following. Write your answer in standard form. 4 IT + i sin 3 31…

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Q: sec y – tan y)(sec y + tan y) 13. = cos y sec 1

A: (secy-tany)(secy+tany)secy

Q: 3VI cos

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Q: Evaluate without using a calculator. (:). sin cos Previe TI Enter your answer as a number (like 5,…

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Q: If sec ß = -2, find csc (ß - ) 2

A: Given

Q: Approximate to four decimal places, when appropriate.

A: a) Evaluate: cotπ13 Simplification: cotπ13=4.0572 Hence cotπ13=4.0572

Q: 1- cos? 0 = sin 0 .2 %| sin 0

A: We can prove, We use the Right angled triangle and Pythagoras theorem.

Q: tan u cos u = sin u %3D

A: *to prove:- tanucosu=sinu

Q: 1+cos x 1+sec x

A: we have to simplify the following

Q: Find an algebraic expression equivalent to the given expression. Hint: form a right triangle. (2 cos…

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Q: Find the quotient and write it in rectangular form using exact values. 10( cos 100° + i sin 100°) 5…

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Q: Write the given expression as an algebraic expression in x. tan(2 cos-(x)) Need Help? Read It

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Q: If cos a = -√2 -¯2² and 1/2 , what are the values of sin and tan ? What is in degrees and radians?…

A: This question can be solved using the concept of trigonometric equations.

Q: Use the cosine law to show that ū · ở = ||ū||||J|| cos(0). You must use the cosine law in this…

A: To prove that               u→·v→=u→v→cosθ

Q: Write CoS(330°) in terms of the cosine of a positive acute angle. O- cos(30°) O cos(50°) COS O…

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Q: arc cos ( - 2

A: Use the property of arccos(y) and Cosy Cos(arccos(y)) = y

Q: Which of the expressions below are equivalent? Which are not? Explain. i. sin '(x) ii. csc(x) iii.…

A: It is known that sin-1x can also be written as arcsinx.

Q: COS X To check for the result, prove that CSC X+ 1- cos x xp Evaluate the lee cida nE the onuntion

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Q: Find cos o. (8, 6) ? COS O ニ Give your answer in lowest terms.

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Q: 2-50 cos(30 +1) do

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Q: Divide. 32(cos(프) +i sin()) 4v3(cos()+i sin(#)) Enter your answer by filling in the boxes. Enter the…

A: To divide the given complex number into simplest form of a complex number

Q: Find the exact value of the expression sin π/4 cos 0 - sin π/6 cos π. Write the answer as a single…

A: Given:sinπ4 cos0-sinπ6 cosπ

Q: Find the exact value of the expression. Do not convert to decimals.  cos(2arctan(4/3))

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Q: [2(cos 25 +isin 25)]. [5Ccos75+isin 75)]

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Q: Use a double angle formula to rewrite the expression 1/2(cos^2x ) -1/4

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Q: cos² O tan? 0 + sin² O tan? 0 +1= sec² 0 COS

A: *concept:- 1. sin^{2}x +cos^{x} = 1. 2. tan(x) = sin(x)/cos(x).

Q: Find all solutions to the equation. sec²x + tan x = 1 Write your answer in radians in terms of , and…

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Q: simplify/evaluate cos (arctan ( 8/3 ))

A: Draw a triangle so that it has opposite=8 and adjacent=3

Q: (sec ß–1)(sec ß+1) sec²ß (sec B–1)(sec ßB+1) Which expression is equivalent to is for all values of…

A: Simplification

Q: solve for theta if 0 degrees&lt;theta&lt;360 degrees sin theta/2 -cos theta=0 theta=?      enter…

A: Given equation is By using the identity  we get

Q: Multiply. Leave the answer in trigonometric form. 5(cos 105° + i sin 105°) · 7(cos 54° + i sin 54°)

A: The solution is:

Q: Use the power reducing formulas to rewrite tan-5x cos*5X in terms of the first power of c Simplify…

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Q: write an algebraic expression in terms of x:    cos(sin-1(3x))    (Hint: draw a right triangle.)

A: Given:

Q: Can someone help me to answer this ? Plssss.   Cos(5pi/4) and. Sin(5pi/4)

A: Find the value of cos(5pi/4) and sin(5pi/4). We know that: sin(π+x)= -sinx and cos(π+x) = -cosx.…

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.