Use a calculator to evaluate the expression. cos ? (67°) + sin ? (67°) cos ? (67°) + sin ² (67°) = (Simplify your answer.)

Q: Write the trigonometric expression as an algebraic expression. cos(arccos 6x − arctan 6x)

A: Assume arc cos X= a  Arc tan X = b  Then use trigonometric formulas

Q: Simplify the trigonometric expression. 9 cos(x) sec(x) cot(x)

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Q: sin(?) cos(3?) + cos(?) sin(3?) = 0

A: we have to simply   sin(?) cos(3?)   +  cos(?)  sin(3?) = 0

Q: B. If cos(a) = sin(52°), what is the value of a? a) 28° b) 38°

A: Solution of the problem as follows

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: Simplify the trigonometric expression. cos3(x) sin2(x) cos(x)

A: Given:

Q: Write the first expression in terms of the second if the terminal point determined by t is in the…

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Q: Factor the following trigonometric expression. cos ?a - sin?8 ?a - sin²ß=D cos

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Q: 3. Simplify the expression tan? x(csc² x – 1). O tan? x 1 cot? x -1

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Q: Find the exact value of the expression, if possible. Do not use a calculator. 30) 30) sin-1 sin B)…

A: Since sine is periodic, the arcsine of sine of x is equal to x plus 2kπ when k is integer:   arcsin(…

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

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Q: Write the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of…

A: we have to find the exact value of expression,cos2 15o - sin2 15o

Q: Simplify the following expression to a single number or trigonometric expression. sin? x csc x – cos…

A: Simplify the expression: sin2x csc2x-cos2x

Q: Find the exact value of each expression

A: cos-13/5=53.13° from the trigonometric table.

Q: Solve the equation cos (-a)tan?a + cos (-a) = - given that 0 < a < 2n. Select the correct answer…

A: From the given data: The value of alpha is

Q: Write the expression as a single trigonometric function. cos 25° cos 65° − sin 25° sin 65°

A: Given : cos 25° cos 65° − sin 25° sin 65°

Q: I don't even know where to start Help!!

A: Consider the trigonometric identity in terms of sin t and cos t.Then simplify the identity to…

Q: Simplify the expression.   Cos(2 tan-1x)

A: Given: cos2tan-1x for simplifying given expression we assume tan-1x=θtanθ=x now putting value of…

Q: cos? x 5. Simplify the expression 1-cos² æ O sin? x O cot? æ O tan? a O cos? x COS

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Q: Solve exactly on the interval (0, 7). 16 tan? x – 6 tan a = 0 radian [ write the answer in radian]

A: The given equation is transcendental equation, which can be solved using substitution method as…

Q: -1 Simplify the expression sin (tan(3 )), where the angle is measured in radians.

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Q: The value of the expression cos? x – tan? x – 8 + sin² x + sec² x is 2 -

A: Given expression : cos2x -tan2x-8+sin2x+sec2x We need to evaluate determine the value of above…

Q: 3 sin? 30° + 3 cos2 30°

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Q: Simplify the expression. Do not evaluate. cos?(5x) – sin?(5x)

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Q: Simplify the expression. Do not evaluate. cos?(18°) – sin2(18°)

A: cos2A-sin2A=cos 2A

Q: Simplify the trigonometric expression. 1+ sin y csc y + 1

A: Given,           1 + sin ycsc y + 1

Q: Find the exact value of the following expressions. Do not use a calculator. (a) sin (660°) 15л (b)…

A: NOTE: Refresh your page if you can't see any equations. . use the rule  use the rule

Q: The value of the expression cos? a – tan² x – 5 + sin? x + sec² x is O -10 csc z O 10 -3 O 10 secI O…

A: value=?

Q: 15 8 C 17 A B.

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

A: Given trigonometric equation is

Q: What trigonometric substitution should be used to evaluate ? A x=3 sec® B x=3 tan0 x= 3sin0 D) None…

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Q: Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) 2 sin(14°)…

A: Simplifying the the given equation

Q: ite the expression as 2 sin 32° cos 83°

A: We have to simply

Q: Use the cofunction identities to evaluate the expression without the aid of a calculator. sin? 39° +…

A: Given data is : sin239∘+sin251∘ To find  the value of sin239∘+sin251∘ without using calculator. Use…

Q: Simplify without a calculator: 2 sin(15°)cos(15°) I| ||

A: answer = ?

Q: Simplify the trigonometric expression: 1 csc e – sin 0

A: Given :                   Simplify the expression :…

Q: Evaluate the expression without using a calculator. sin−1(cos(2?))   answer in radians, please

A: Given the trigonometric expressionsin−1(cos(2π))

Q: Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one…

A:

Q: Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) 2 sin(18°)…

A: In this question we will use basic of trigonometry i.e sin2θ=2sinθcosθ In first question we will put…

Q: Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) cos (36°) –…

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Q: 2. Simplify the following trigonometric expression tan? I sec2 x + cos? r

A: Please see the answer below

Q: Verify the identity. (Simplify at each step.) 3 sin2 a - 3 sin a = 3 cos? a 3 cost a 3 sin? a - 3…

A: Solution-  In the given question we use formula that is Sin2 x = 1-cos2 x Cos2 x = 1-sin2 x

Q: write the expression as a trigonometric function of one number: Зл Зп = cos = 2 B cos cos + sin sin…

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Q: Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) 2 sin(18°)…

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Q: plify the expression by using a Double-Angle Formula or a Half-Angle Formula. 1- cos(30°) (a) 1-…

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Q: Verify the identity. (Simplify at each step.) 8 cos? B – 8 sin? ß = 8 – 16 sin? B 8 cos? B – 8 sin?…

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

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Q: Use the suggested substitution to write the expression as a trigonometric expression. Simplify your…

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Q: Simplify the trigonometric expression. 8 cos(x) sec(x) cot(x)

A: Given,             8cosxsecxcotxTo find : Simplify the trigonometric expression.

Q: TC TE What is the value of cos sin-2tan 21 6. 4.

A: