If 0s0<360°,then use your calculator and the reference angle to find two values when cos 0 =-0.4568

Q: Use an appropriate Half-Angle Formula to find the exact value of the expression. sin(15°)

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Q: If θ is acute, the Half-angle Formula for the cosine functionis cos θ / 2 = ____

A: cos2θ=2cos2θ-1⇒2cos2x=1+cos2θ⇒cos2θ=1+cos2θ2⇒cosθ=1+cos2θ2⇒cosθ2=1+cosθ2

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

A: Given: cos-145 To Find: To evaluate the given expression.

Q: Use these values: Let the hypotenuse be 70cm, vertical 24.5cm and 65.98cm for the horizontal.  A)…

A: The trigonometric ratio formula will be used for calculating vertical and horizontal leg from the…

Q: Find the exact value by using a half-angle identity. sin 75°

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Q: If cos θ=0.713, find θ, writing your answer to the nearest degree.

A: Trigonometric value

Q: Use a calculator to give the value to the nearest degree. e = cos-1(-0.9397) %3D O-20° O 157° O 162°…

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Q: Use the formula for the cosine of the difference of two angles to verify the identity.

A: To prove: cosx-5π4=-22cosx+sinx

Q: Use a calculator to find the value of the acute angle, 0, to the nearest degree. sin 0 = 0.4829

A: Given: sin θ = 0.4829     To determine: value of θ

Q: Give all six trig function values for angle 0 if tan 0 = - and 0 is in quadrant 4.

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Q: Find an angle θ with 0∘&lt;θ&lt;360∘ that has the same:Sine as 50∘: θ = Cosine as 50∘: θ =

A: Given

Q: Find the principal values of the following. Express sin5x in terms of multiple angles.

A: Let me discuss this problem::&gt;

Q: Use the appropriate compound angle formula to determine the exact value of each expression. cos (T-)…

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Q: Use the Half-angle Formulas to find the exact value of each expression. cos 165°

A: Assume an angle x. According to the half-angle formula, cos x2=±1+cos x2. The expression cos 165°…

Q: Use half-angle formula to find exact value of cos 15°

A: Given,          cos15°We know that,         cosθ2=1+cosθ2

Q: Find the exact value by using a half-angle identity. sin 75° ① 专业 這次難 這次的

A: We will solve the required.

Q: For 0° < 0 < 360°, find the angles that satisfy the equation sin(0) = -0.95106 and tan(0) = 3.0777…

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Q: Given that cosą = - 12 and A is in the second quadrant, find this function. sece=

A: Given, cosθ=-1213

Q: If cosθ=0.104, find θ, writing your answer to the nearest degree.

A: Use inverse trigonometry ratio

Q: Find an angle 60 with 0° < 0 < 360° that has the same: Sine as 70°: 0 = 0.9396 x degrees Cosine as…

A: We know that sine function is positive on both first and second quadrant, cosine function is…

Q: Complete the steps by applying trig identities to show that the left hand side of the equation is…

A: Simple trigonometry problem.....

Q: Use half-angle formula to find exact value of cos 15°.

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Q: alues of the sine and cosine functions for 20

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Q: If cosA=(sqrt5)/5 with A in Q1 and tanB=3/7 with B in Q1, find cos(A+B).

A: If cosA=(sqrt5)/5 with A  and tanB=3/7 with B , find cos(A+B)

Q: Find x if it is the measure of an acute angle in a right triangle and cos x =0.0670.

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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: cos7A = sin(A-60) where 7A is an acute angle , Find the value of A

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Q: If 0s0<360°,then use your calculator and the reference angle to find two 0 values when csc 0 =-1.343

A: Given query is to find the two value of theta.

Q: New Give the answer to the trig function and the quadrant where the angle terminates. sin- 6. -

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Q: Use a calculator to find the value cos π/4 to four decimal places:

A: Given:cosπ4

Q: Use reference angles to find the exact value of the following expression. sin 6

A:

Q: Find an angle 0 with 0° <0 < 360° that has the same: Sine as 80°: 0 = 100 degrees Cosine as 80°: 0 =…

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Q: Use an appropriate Half-Angle Formula to find the exact value of the expression. cos (2)

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Q: What angle between 0 and 2pi radians has its cosine equal to 1/2?

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Q: If 0s0<360°,then use your calculator and the reference angle to find two 0 values when cos 0…

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Q: Find the exact value by using a half-angle identity. cos 165°

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Q: Evaluate without a calculator:

A: The unidentified measure of an angle of a right triangle can be evaluated with the help of inverse…

Q: Find the exact value. a. cos, 2.

A: a. Obtain the value of cos3π2, cos3π2=cos2π-π2=cosπ2=0   Thus, the exact value of cos3π2 is 0.

Q: function values. if cos x=1/4 and cot x < 0 , find

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Q: By applying the compound angles and without using a calculator determine the value of Cos15°

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Q: Determine the quadrant in which the terminal side of 0 lies. (a) cos 0 0 and tan 0 > 0 (Choose one)…

A: Given query is to find the quadrant for the angle.

Q: Use the half-angle formula to find the exact value. cos 15°= ロロ ローロ X.

A:

Q: Find an angle 0 with 0° < 0 < 360° that has the same: Sine function value as 220° 0 = | -0.64279 x…

A: Here we will use the trigonometric relations and properties related to all 4 quadrants to find the…

Q: Find an angle 0 with 0° < 0 < 360° that has the same: Sine as 200°: 0 - |degrees Cosine as 200°: 0-…

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Q: Use an appropriate Half-Angle Formula to find the exact value of the expression. COS

A: We can answer the question as below using half angle formula.

Q: Use a calculator to find the measure of angle 0 to the nearest degree if cos 0 = 0.5878.

A: Given:cosθ=0.5878

Q: Suppose that is an angle in quadrant 2 and that - 119 cos y = Compute the exact value of cos - 169…

A: here we have to find the value of half angle. the solution is following.

Q: If sin0 &lt; 0 and tan0 &lt;0, which quadrant is 0?

A: The signs of the 3 basic trigonometric functions in 4 quadrants are as follows.

Q: Use a calculator to find the value of the acute angle 0 in radians, rounded to three decimal places.…

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