Use an addition or subtraction formula to find the exact value of cos 15° = VA(VB+1), and fill in the values of A and B

Q: Find the exact value

A: To evaluate cos (67.5 degrees) exactly (without calculator or tables)

Q: Find the exact value, not a decimal approximation, of cos^-1[cos(-5pi/3)]

A: Given that: cos-1cos-5π3

Q: 7) cos 15°

A: Solution: As per our guidelines, we are supposed to answer only? One question ( if there are…

Q: Find a cofunction with the same value as the given expression cos 2π/5

A: Given expression cos2π5Co-function identity we have ,cosπ2-x=sinxand sinπ2-x=cosx

Q: Approximate all solutions to the given equation that are in the interval [0,2pi) to the nearest…

A:

Q: Which is a possible value of q, rotating counterclockwise, to the nearest hundredth of a radian,…

A: To find- Which is a possible value of q, rotating counterclockwise, to the nearest hundredth of a…

Q: Find the exact value of the expression: cos(1050)

A: we have to find the exact value of the expression cos(105°).  Cos(A+B) =cosAcosB-sinAsinB

Q: Use a half-angle formula to find the exact value of cos3π/8.

A:

Q: Find the exact value of cos(37.5◦).

A:

Q: Find a cofunction with the same value as the given expression: (a) sin 72° (b) Csc 3

A:

Q: Solve the following equation for 0. Find the smallest positive radian value. (2 cos(8)) = 2

A:

Q: Find the exact value of the expression. cos (30° + 120°) so:

A:

Q: Find exact values for each of the following a. cos 240° b. sec 300° c. cot 480°

A:

Q: Find a cofunction with the same value as the given expression cos(3π/8).

A: We know that cosθ=sinπ2-θ         ...(1)

Q: Find the exact value of cos 435°

A:

Q: Find a cofunction with the same value as the given expression: a. sin 72°  b. csc(π/3).

A:

Q: Use an addition or subtraction formula to find the exact value of cos(−π12)=√A(√B+1)4. A= B=

A:

Q: Find the exact value of cos 45°.

A: NOTE: Refresh your page if you can't see any equations. . from the trigonometric table, we can…

Q: solve the equation cos(20) ={ for angles e on the interval

A:

Q: Find the exact value of cos A in simplest radical form. B 25 7 A 24

A: find the exact value of cos A in the simplest radical form

Q: Find the Exact Value of cos(165°)

A:

Q: Find the exact value of cos(20)-

A:

Q: Use an addition or subtraction formula to find the exact value of tan75 degrees =A√+1B√−1 A= B=

A: Consider the expression tan75 degrees The addition formula for tangent is given by

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

A: Given : cos285°

Q: Find the exact value of the expression cos(135° + 30°)

A: Find the exact value of the expression cos(135° + 30°)

Q: Find the exact value of cos 105° by using a sum or difference formula.

A:

Q: Find the exact value.cos 75°

A: Consider cos 75°=cos45°+30°

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

A: Explanation of the answer is as follows

Q: Use the trigonometric ratio cos e-0.6798 to determine which of the following is the correct value of…

A: We have to find trigonometry ratio

Q: find the exact value of: cos(2tan-1(9/40))

A: To calculate the exact value of the below expression,

Q: Write the formulas for cos(A - B) and sin (A - B)?

A: We have to write the formulas for cosA-B and sinA-B. We know the formula for cosine difference angle…

Q: Find cos(2A), if sin(A) = 45 53' and A is in quadrant 3.

A:

Q: Use an addition or subtraction formula to find the exact value of cos15∘=?√(?√−1)/4 solve for A and…

A: Use this subtraction formula: also,

Q: Find the exact value of cos 15°.

A: To find value of cos15°. We know that cosa-b=cosa cosb+sina sinb Therefore, using the above formula.…

Q: Find the exact value of cos(165°).

A:

Q: Find the exact value of : a) cos 60° = b) tan c) sin 45° = 4 e) sec0° = d) cos T =

A: Lets find exact value of given trigonometric function.

Q: Find the exact value, if possible, cos(cos-1 1.5).

A: Consider the provided expression, coscos-11.5 Find the exact value.

Q: Select the best answer. (플-0) 371 CoS 2

A:

Q: What is the exact value of cos(495°)? A 3 2 2 D 2 2. wish B

A: All trigonometry ratios change at 90° and 270°. In second quadrant , sine and cosine are positive.

Q: Use the formula for cos (A + B) to find the exact value of cos 75 degree

A: Given The expression is cos 75°.     Formula :- cosA+B=cos A cos B- sin A sin B

Q: Find the exact value

A: Given information:The given expression is .

Q: Find the value of the following cos-1 ( 3 + j )

A: The formula for is calculated as follows.

Q: Use a half-angle formula to find the exact value of cos 22.5°.

A:

Q: Find all angles, 0° < 0 < 360°, that satisfy the equation below, to the nearest tenth of a degree…

A: Topic- Inequalities

Q: Find a cofunction with the same value as the given expression. cos(4pi/3+x)

A: Consider the given cosine function, cos4π3+x The cofunction of the cosine function is the sine…

Q: Find the four (4) values of 0 (radians) which satisfy the equation P4(cos 0) = 0

A: We need to find four values of θ which satisfy the equation P4(cosθ)=0