Use a scientific calculator to approximate in decimal degrees and follow significant figures rules: -1 0 = cos (-0.315)

Q: Use Identities to find the exact value. 5) cos (285°)

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Q: Find the exact value of the expression cos(arctan 3/4).

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Q: Use a calculator to approximate the value of the expression cos−1 0.26, if possible. Round your…

A: Given: cos-1 0.26,

Q: Find the exact value of expression.

A:

Q: Use a calculator to find the following function values cos 1.2353

A: The given expression is cos1.2353

Q: Use a calculator to find an approximate value for each expression,rounded to two decimal places.…

A: To evaluate: sin-1(0.7) Solution: sin-1(0.7) On simplifying further we get:…

Q: The value of cos0 from the following figure is 40 41

A: A triangle is a polygon having three sides and three vertices. Sum of interior angles of triangle is…

Q: Find a cofunction with the same value as the given expression sin 46°

A: We will use the formula sin(x)= cos(90°-x)   Here, x=46°

Q: Use a calculator to find the approximate value of each expression rounded to two decimal places.…

A: To use a calculator to approximate the value of expression rounded to two decimal points: tan-1(0.2)…

Q: Use a calculator to approximate each value to four decimal places.             cos 10

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Q: Use a calculator. Round to the nearest tenth. Given cos 0 = 0.2186, find 0.

A: The solution is given in the next step.

Q: Calculate the following. a. sin cos" (-) c. tan-(1)

A: To calculate the following trigonometric values of the functions.

Q: Find the values in

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Q: Use a calculator to approximate each value to four decimal places.       cos (-2.5)

A: cos (-2.5) = ?   We know,  cos(-θ) = cos(θ)

Q: Use a formula for negatives to find the exact value.

A: We have to find exact value of the expressions: a  sin -3π2b  cos -225°c  tan -π We know the…

Q: Find a cofunction with the same value as the given expression tan π/9

A: The cofunction of tanπ9 is cotπ2-π9

Q: Use a calculator to find the value of each expression rounded to two decimal places .

A: Find the value of sin-135 using calculator in following steps. Press shift+sin in the calculator to…

Q: Use a calculator. Round to the nearest tenth. Given cos ? = 0.1489, find ?.

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Q: Use a calculator. Round to the nearest tenth. Given cos 0 = 0.4273, find 0. %3D

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Q: sin (- ): %3D 4 II

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

Q: Complete the following table using exact values. (If an answer is undefined, enter UNDEFINED.)…

A: It is known that  csc x = 1/sin x

Q: ) Find the exact simplified value. A pu 13л cosG) 13л sin 18 COS COs -sin 18

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Q: Find the period and amplitude y= -4/7 cos(10πx)

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Q: Find the exact value of the given expression. 0(2 tan-¬() COS

A: cos2tan-143 Now let tan-143=θ⇒tanθ=43⇒sec2θ-1=43    ∵sec2x-tan2x=1⇒sec2θ-1=169      Squaring on both…

Q: Find the exact value. sin(930°) = cos(930°) COS

A: We have to find the exact value of    sin(930°) cos(930°)   930 can be written as 180*5+30 180°=π…

Q: Find the exact value of the given expression. tan( cos- )

A: Giventan(12cos-189)

Q: Use a calculator to find the approximate value of each expression rounded to two decimal…

A: we know that 1 degree = π180radian so we can write  tan1o=tan(π180)radian…

Q: Find the exact value of the given expression. tan(} cos"(}))

A: tan12cos-123 Now let 12cos-123=θ⇒cos-123=2θ⇒cos2θ=23⇒2cos2θ-1=23⇒2cos2θ=53⇒cos2θ=56⇒cosθ=56 Now by…

Q: Use a calculator to find the value of each expression rounded to two decimal places .

A: To find cos-123

Q: Find the exact value of cos 285° by using sum or difference formula

A: Given : cos285°

Q: Use a calculator to approximate each value to four decimal places.            cos 10  degree

A: Use a calculator to approximate each value to four decimal places.    cos 10  degree

Q: Use an Addition or Subtraction Formula to find the exact value of the expression. cos(165°)

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Q: Find the exact value of cosl tan 12

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Q: Evaluate the given quantity without using a calculator or tables. cos [sin-¹(3)]

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Q: find the exact value of arctan(tan(5*pi/4))

A: Find the exact value of   arctantan5π4

Q: Find a cofunction with the same value as the given expression. sin(pi/6+x)

A: To find a cofunction of sinπ6+x

Q: Find the exact value of cos tan

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Q: What is the exact value of Cos(210°)? V3 1/2

A: Answer and explanation is given below...

Q: Find 0 in radians. T radians ?

A: Here, from the given figure the point which has the angle θ is: 12,32=(x,y)

Q: Find the value, correct to 3 decimal places for each expression: (a) sec(arctan(2)) (b) cos(2…

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Q: Find an approximate value of each expression correct to at least 3 decimal places. in radians. (a)…

A: To find an approximate value of each expression correct to at least 3 decimal places in radians.…

Q: Use a calculator to find the value of the following expression rounded to two decimal places.…

A:

Q: Find the value of a, where 0sas 180°. cos a = -0.0296 (Round to the nearest tenth as needed.)

A:

Q: Find the value of a, where 0sas 180°. cos a = -0.2018 ° (Round to the nearest tenth as needed.)

A: Solution: The objective is to find the value of alpha

Q: Use a calculator to approximate cos 45 to four decimal places.

A: Consider the given trigonometric term cos45

Q: Use a calculator and round to the nearest hundredth. 11. Find csc θ, if cos θ = 0.76 and θ ∈ QI

A: Given,           cosθ=0.76 and θ∈QI