Part 2 Establish the identity. cos ? 0 - sin 20 = 1-2sin 2

Q: Verify the equation is an identity 1/1−cosθ + 1/1 + cosθ = 2 /csc^2 θ

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Q: Verify that the equation is an identity. cot 0 cos 0 cos 0 81. cot 0 - cos 0 1- sin 0

A: Since you are asking multiple questions. We are answering only the very first question as per our…

Q: Find the exact value of 5cos 3 pi / 2 + 3 sin pi/2

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Q: tan 0 = 0.768 cos ) =

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Q: sin 120° =________ ; cos 240° =_______

A: To Determine: sin120∘ and cos240∘ Given: we have sin120∘and cos240∘ Explanation: we have  sin120∘ we…

Q: cos(30°))² – (sin(30°) ||

A: We have to evaluate.

Q: the identity.  1+cos?= Sin2 ?/ 1-

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Q: Use right triangles to explain why cos-1 x + sin-1 x = p>2.

A: given: a right angled triangle. the given expression is: sin-1(x)+cos-1(x)=π2

Q: Find the exact radian solutions of the equation in the interval [0,27). cos 20 = 5 cos 0- 3

A: Given,           cos2θ=5cosθ-3

Q: prove the identity.  1+Cos?= Sin2?/ 1-Cos?

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Q: Find the value of cos (570)sin (510) + sin (- 330)cos (- 390)

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Q: Find the exact value of cos 2 .... cos 2 (Type your answer in radians.)

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Q: Find the exact value of the expression. Not a decimal.   cos^-1 (sin 7Pi/6)

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Q: 3) Use the sum, difference, double or half-angle formulas to find the exact value of cos(sin-1+…

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Q: Evaluate the exact value of cos sin 61

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Q: (a) [* sin*(@) cosť (8) do COS

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Q: 4. Determine the exact value of Sin 120*

A: As we know from the trigonometric identity; sin90+θ=cosθ   The given expression is: sin120°

Q: 1. COS I Verify the identity sin 2

A: see below the answer

Q: 5. Is the equation cos 8- sin 0 =1 an identity? If so, verify it. If not, explain why.

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Q: 1. Find the exact value: sinB: Given tanB= -2/5, 3r/2 <B< 2n

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Q: Evaluate in radians a. sin-1 (1/2) b. tan-1 (-1)

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Q: Verify the identity (sin θ + cos θ)2 + (sin θ - cos θ)2 = 2.

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Q: cos 등 O sin O sin cos 꽃

A: cosπ3

Q: If cos a + cos B= a and sina + sin B= b, then show that 2 sin 2a + sin 2B = 2ab 1 a2 + b2

A: given: cosα+cosβ=asinα+sinβ=b we have to show that  sin2α+sin2β=2ab1-2a2+b2 R.H.S: 2ab1-2a2+b2…

Q: Derive the identity using the identities listed in this section.

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Q: 5. Is the equation cos 0 - sin 0 = 1 an identity? If so, verify it. If not, explain why. %3D

A: As we know that an identity is satisfied by any value of variable . Let's check for given equation .

Q: Complete the identity cos^2?+tan^2?+sin^2?=

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Q: Find the exact values of cos 0 if sin 0 * and sec 0 > 0 13

A: Given:sin θ =-513 and sec θ &gt;0

Q: Use the figure to find the exact values of sin(2u), cos(2u), and tan(2u). (4, -7) sin(2u) -0.87 |x…

A: Topic:- trigonometry ratios

Q: Determine the value of a, (give a reason for your choice); if cos 1 tan- 3x. 4x

A: Given: cos-114x=tan-13x we know that cos-1y=tan-11-y2y similarly,…

Q: Write cos 28° in terms of sine. cos 28° sin %3D

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Q: What is cos(A)? 13 12 cos(A) = [ ? COS

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Q: If cos 0 = and tan 0 what is sin 0? %3D 10 %3D ? sin 0 = Report your answer in simplest form.

A: Topic - trigonometric ratios

Q: 10. If the cos0=- and 0 is located in the third quadrant, what is the value of sin0?

A: Find by drawing a right angle triangle

Q: 2 sin 75° cos 75°

A: Trigonometric formula: - We only consider trigonometric formulas for right-angled triangles when we…

Q: 6( cos 150° + i sin 150°)

A: Simplify and convert complex number in rectangular form 6cos150°+isin150°

Q: Verify the identity : (sin θ + cos θ)2 = 1 + sin 2θ

A: we have to verify the identity: sin θ +cos θ2=1+sin 2θ

Q: cos(θ)=5 sin(θ)=16 Evaluate: tan(-θ)=?

A: cos(θ)=5 sin(θ)=16

Q: 12 1 Determine the exact value of cos tan 5

A: Given: To find the value of costan-11215

Q: rove the identity: cos2 ?+ cos2?tan2?= 1

A: Givencos2θ +cos2θ tan2θ =1

Q: Verify the identity. sin? a – sin a = cos? a – cos“ a

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Q: Use a half angle formula to fill in the blanks in the identity below: (cos(4z))² - cos( 2)

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Q: Determine the exact value of (Cos2 45°/sin 30°) x tan 60°

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Q: The exact value of tan COS -11 Cos 2 is: 2 1

A: to find the exact value of tancos-112

Q: Find the exact value. sin(570°)= cos(570°)=

A: Consider the following formulae: sin360°+θ=sinθcos360°+θ=cosθsin180°+θ=-sinθcos180°+θ=-cosθ Consider…