Find sin 195° using half-angle and sum identity.

Q: Without using a calculator, compute the sine and cosine of 315° by using the reference angle. (Type…

A: This question is related to trignometry , we will use the concept of refrence angle to solve it.

Q: Determine the value of each angle to the nearest degree  Cos B = 0.9823

A: Given, cos B = 0.9823

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

A:

Q: If B = 108 degree, C = 37 degree, and c =2.9 inches, use the law of sines to find b.

A:

Q: Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. Please…

A: Given

Q: Use a half-angle formula to find the exact value of the expression sin 105°

A: We have given the expression; sin 105° We know the half-angle formula is;

Q: convert each angle in degrees to radians. Express your answer as a multiple of p.   120  o

A: To convert: Angle 120° into radian and express answer in multiple of π. Concept used: Convert degree…

Q: Use an appropriate Half-Angle Formula to find the exact value of the expression. sin 12

A:

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

A:

Q: Simplify each trigonometric expression by following the indicated direction.

A: Given

Q: Use a special right triangle to write cos 30 degrees as a fraction.

A: Let us use 30°-60°-90° triangle which is a right triangle having the angles 30° and 60°.

Q: Find the exact value of the sine, cosine, and tangent of each angle. 77 2) 4 1) 330°

A:

Q: If A = 32 degree, B = 70 degree , and a = 3.8 inches, use the law of sines to find b.

A:

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: State the Half Angle Identities for sine, cosine, and tangent: (을) sin Cos tan ||

A: We have  to calculate half angle identities for trigonometric function.

Q: Use the Half-angle Formulas to find the exact value of each expression. tan 7π/ 8

A: Known fact: tanx2=±1-cosx1+cosx.

Q: convert each angle in degrees to radians. Express your answer as a multiple of pi; 30°

A: It is known that, 1°=π180 rad The given angle in degrees is, 30°. The objective is to convert the…

Q: Use Half-angle Formulas to find the exact value of each expression;

A: To find: The exact value of the expression sin-π8. Formula used: The Half angle formula: sin…

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

A:

Q: Use Half-angle Formulas to find the exact value of each expression;

A: To evaluate the value of: sec(15π8) Solution: We know, secx=1cosx     ....(1)cosx2=±1+cosx2    ..(2)…

Q: If tan pi/8 = (sqrt A) - B   then, by using a half-angle formula, find A=??  B=??

A:

Q: 6. CoS 8,

A: Half angle formula of trigonometric formula

Q: Use a half-angle formula to find the exact value of tan (pi/8).

A:

Q: Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. 1- cos(40°)

A: (a) Consider the given trigonometric expression 1-cos40°2=1-cos2·20°2=1-1+2 sin220°2       Since,…

Q: Use the “ ???(A+B)” Identify with two angles from the Unit Circle to find the EXACT VALUE. Use…

A: Let's find.

Q: If cot (x) 23 (in Quadrant-I), find 30 sin(2æ)

A:

Q: Use the Half-angle Formulas to find the exact value of each expression. tan 9π/ 8

A: Given- tan 9π8 To Use-  The Half-angle Formulas to find the exact value of above expression. Formula…

Q: 7) sin 62° 9) cos 60°

A: Q(9)cos(60°)=12=0.5 Ans

Q: Find each angle measure to the nearest degree. You must use the 2nd key when looking for inverses.…

A: Here, Given, Sin B=0.5446 And we have to find the measure of angle B.

Q: Use a half-angle formula to find the exact value of the following expression. sin 67.5°

A:

Q: Use an addition or subtraction formula to find the exact value of tan 75° = A+ VB, and fill in the…

A: Values of A and B

Q: Find the exact value of each expression.Do not use a calculator.

A: Given expression: sin220°+1sec220°

Q: V3 sin = 2

A:

Q: Use an appropriate half-angle formula to find the exact value of the expression  tan(π/8)

A:

Q: sin 75°

A: Using Half angle formula, Half angle formula tor sine issinx2=1-cosx2

Q: Find the value of each trigonometric ratio. cos X 25 20 15

A:

Q: Which of the following are the values of sinθ and cosθ if the terminal side of angle θ intersects…

A:

Q: Find the exact value by using a half-angle identity.  cos(5pi/12)

A:

Q: cos Z 12 X 35 37

A: In a right angle triangle with respect to angle θ the cosine function is defined as, cos θ=Adjacent…

Q: If angle θ is in standard position and intersects the unit circle at (5/(root41), -4/(root41)). Find…

A: First we draw a traingle with the given point

Q: 19

A:

Q: Use the given triangle to evaluate the expression. If necessary, express the value without a square…

A: Given:               cosπ4-sinπ4        we know that π4=45°                 =cos45°-sin45°…

Q: For the angle 300°, find the reference angle, the quadrant of the terminal side, and the exact value…

A:

Q: 7) sin Z 32

A: we use Trigonometry ratios

Q: Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) cos? 38° - sin?…

A: Since you have asked multiple questions in a single request, we would be answering only the first…

Q: Use a double-angle formula to rewrite the expression. 6 cos? x - 3

A:

Q: Use a half-angle formula or sum and difference formula to find the exact value of the expression.…

A:

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: Without using a calculator, compute the sine and cosine of 315° by using the reference angle. (Type…

A: In this question we have to find the reference angle and in which quadrant the angle is and sin(315)…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.