sin 50° cot 40° sin 40°

Q: Determine an exact value for each expression. Remember to include a terminal arm diagram! a) sin- b)…

A: Here,              We have given some angles with sine, secant, tangent and cotangent  now ,…

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: Find the EXACT value of each expression. DO NOT use a calculator. a) Cot 120◦   b) Cos 495◦

A: We can write an angle of 120 degrees as (90 + 30). Therefore, we get cot 1200 = cot (90 + 30)0  We…

Q: Find the exact value of each expression.   a)  Cot-1(-√3)    b) arccos(-1/2)

A: Range of Cot-1 is (0,π) In this range, it will be negative in the 2nd quadrant.  So,

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

A: sec-π3-cot-5π4

Q: Verify the identity by converting the left side into sines and cosines.

A: Trigonometric identities can be verified by simplifying the left-hand side of the inequality so as…

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

A: 2sec π4+4 cotπ3

Q: Without using a calculator, compute the sine and cosine of 120° by using the reference angle. What…

A:

Q: Convert the angle 105° to radians. Give the exact value and use pi for T. 105° =

A:

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

A:

Q: Convert the angle 360° to radians. Give the exact value a

A:

Q: Find the exact value of each expression.

A: To find the exact value of cotsin-1-12. Solution: We know that  sin-1-x=-sinx and cot-x=-cotx…

Q: Use a calculator to find theta, to the nearest tenth of a degree, if theta is between 0° and 360°…

A: To find the angle θ.

Q: Perform the indicated operation and simplify the result. tan x( cot x- cscx) The answer is .

A: Given:            tan xcot x-csc x Apply; cot x=cos xsin x and csc x=1sin x           =tan xcos xsin…

Q: Find the exact value of each expression.

A: The given expression is arccos-1 Obtain the valve of arccos-1 by using Ti-83 calculator in degree…

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

A: To Find the exact value of each expression. Do not use a calculator. Given that the expression  cos2…

Q: Convert the angle 90° to radians. Give the exact value and use pi for T.

A: We have to convert the 90° to radians We know that ,  1° = π/180 radian So ,

Q: Write the trigonometric expression in terms of sine and cosine, and then simplify. csc²(x) – cot?(x)

A: Given, csc2x - cot2x   We have to write the expression in terms of sine and cosine and simplify.…

Q: Use a calculator to find theta, to the nearest tenth of a degree, if theta is between 0° and 360°…

A: we have to find the value of θ if we have sin θ=0.44 and 0<θ<360°

Q: State the quadrant number in which the terminal arm of θ is located if: (a) sin θ is positive and…

A: The behaviour of θ in all 4 quadrants is given as follows- 1st quadrant - sinθ,cosθ,tanθ are…

Q: find the reference angle, the quadrant of the terminal side, and the sine and cosine of each angle.…

A: The objective is to find the reference angle, the quadrant of the terminal side, and the sine and…

Q: Evaluate the sine, cosine, and tangent of the angle without using a calculator. (If an answer is…

A:

Q: Without using a calculator, compute the sine and cosine of 300° by using the reference angle. In…

A: Given that: value of angle = 300° To Calculate: value of sin300 and cos300

Q: If a flagpole casts a 13 ft shadow on the ground when the sun is at a 68° angle of elevation, which…

A:

Q: 7) sin 62° 9) cos 60°

A: Q(9)cos(60°)=12=0.5 Ans

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

A: Given sin5π12cosπ4-cos5π12sinπ4 Take sin5π12cosπ4                      ⇒sin5 × 18012 . cos1804⇒sin75…

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

A: Given expression: sin220°+1sec220°

Q: Without using a calculator, compute the sine and cosine of 210° by using the reference angle. (Type…

A: Given:         Since the given angle is 210∘.Let θ=210∘.

Q: Use a calculator to find the value of the acute angle, 0, to the nearest degree. sin 0 = 0.3083…

A: sinθ = 0.3083     θ = sin-1(0.3083)     θ = 17.95° ≈ 18°     θ ≈ 18°

Q: Without using a calculator, compute the sine and cosine of 150° by using the reference angle. What…

A: This angle lies in second quadrant. Since this angle lies in second quadrant, therefore the…

Q: sin 75°

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

Q: 9.프 rad 11n 10. rad 11. rad 4 12. - rad 4 3.

A: We know that an angle say 'a' in radian is converted to degree by using the following formula:…

Q: Without using a calculator, compute the sine and cosine of 120° by using the reference angle. (Type…

A:

Q: Use the Law of Sines or the Law of Cosines to find length x to the nearest whole number. 60 12

A: consider the triangle, we have a2=b2+c2-2bccosA

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

A:

Q: Without using a calculator, compute the sine and cosine of 240° by using the reference angle. (Type…

A:

Q: Use a calculator to find the value of the acute angle, 0, to the nearest degree. sin 0 = 0.6997 e=…

A:

Q: Use a calculator to find a value of 0 between 0° and 90° that satisfies the statement. Write your…

A:

Q: Use a calculator to find ? to the nearest tenth of a degree, if 0° < ? < 360° and cos( ?)=-0.7620…

A: Given: cos( x )=-0.7620 0° &lt; x &lt; 360°

Q: Given that A = 0.95 radians in the picture below, find the length of the hypotenuse and the other…

A: We will use trigonometry to find the required length of leg and hypotenuse. Sin(.95 rad) = 0.8134…

Q: Find two negative and three positive angles, expressed in radians, for which the point on the unit…

A:

Q: Use a calculator to find a value of ? between 0° and 90° that satisfies the statement. Write your…

A: We have to find theta

Q: Without using a calculator, compute the sine and cosine of 210° by using the reference angle. (Type…

A:

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

A: Reference angle = 360 - 315 = 45 degrees. Please enter 45 in the first answer box. This angle is in…

Q: Use the given information and a calculator to find theta to the nearest tenth of a degree if0 degree…

A:

Q: Without using a calculator, compute the sine and cosine of 225° by using the reference angle. What…

A:

Q: Without using a calculator, compute the sine and cosine of 120° by using the reference angle. In…

A: Solution: The objective is to find Sin(120∘) and Cos(120∘)

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)…

Q: Use a calculator to find a value of u between 0° and 90° that satisfies each statement. Writeyour…

A: Solution: Consider the given trigonometric equation is  cot θ = 5.5764 By using a calculator we have…

Q: Use the given information and a calculator to find  to the nearest tenth of a degree if0 degree…

A: We know that range of sine function is [-1,1]. So there is no angle θ such that sin θ=20.3090.

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.