tan 20° – cos 20° cos 70°

Q: If cot α = –4/3and sin α < 0, find cos α and csc α

A:

Q: According to the Cofunction Theorem, which value is equal to sin 35   0?      cos 55 0

A: The given trigonometric function is : sin35∘

Q: If cos(θ)=−14cos(θ)=-14 and θθ is in the 2nd quadrant, find sin(θ)sin(θ)

A: We have given that cosθ=-14......(1)

Q: if sin + 90 degrees is = cosine sin + 180 degrees = -sin what is sin - 90 degrees

A: if sin (+ 90 degrees) is = cosine sin (+ 180 degrees) = -sin what is sin - 90 degrees

Q: (cos 145 +i sin 145°), find zw. UR decimal places.

A: For this problem, we can solve by using formula.

Q: Perpendicular=3.  Base=4.  Find tan theta

A:

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: Simplify tan( arccos ). V3 O1 V3/3

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Q: Find a cofunction with same value as tan 59°. The cofunction is ?

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Q: Find the exact value of cos(83°) cos(23°) + sin(83°) sin(23°)

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: sec α = –4 and csc α > 0, find cos α and tan α.

A:

Q: If 0 is an angle in standard position and its terminal side passes through the point (20,21), find…

A: Given :            If theta is an angle in standard position and its terminal side passes through…

Q: Verify each equation is an identity. 2 2 3. sec 2 1+ cos 11

A: To verify:

Q: According to the Cofunction Theorem, which value is equal to sin 35   0?      cos 35 0

A: We have to find the value of sin35° equal to its cofunction.

Q: Find cosec  theta  if cot  theta = -21/20  sin theta &gt;0

A: Given: cotθ=-2120  &amp; sinθ&gt;0 To find: cosecθ Solution: Here cotθ is negative and sinθ is…

Q: Find the exact value of the expression. Not a decimal.   cos^-1 (sin 7Pi/6)

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Q: Apply the double angle formulas: cotθ = (square root of 2)/6, cosθ < 0 a. sin2θ b. cos2θ c.…

A:

Q: Use a compound angle formula to rewrite cos(30) in terms of sinO and / or cose.

A: compound angle formula

Q: If sec(θ)=5/3, 0≤θ≤90 then sin(θ) equals? cos(θ) equals? tan(θ) equal

A:

Q: Find all six trig rations given the following information:  cos =-(3/4), tan < 0

A: Explained below

Q: Find all solutions in radians: 15 − 9 cos (6t − 5) = 14

A:

Q: Cos 30° csc 30 + tan 60°

A: Solve the given equation

Q: 9 Simplify arcsin(cos 35). 35° 55° no solution

A: Given problem:- Simplify arcsin(cos 35).

Q: Find cos θ and sin θ if tan θ = 4 and π ≤ θ &lt; 3π/2

A:

Q: Evaluate without using a calculator.     cos    -1 ( cos 7pi/4)

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Q: If csc(a) = 3, for 90° < æ < 180°, then sin . (등) cos5) = tan() - 2

A:

Q: Find cos 20 if sin 0 = cos 20

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Q: Find all solutions to each equation in radians. 21) 3tan 40 = -3 22) -5 = -4 + tan 23) sin 20 - 24)…

A:

Q: find the exact value of the expression: 15 tan? + 6 sec2

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Q: cos 0 sin 0 1 6. tan 0 7. sec20 - 1

A:

Q: 13. csc(330°) 14. tan(240°) 4 cos 3 15.

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Q: Complete the identity cos^2?+tan^2?+sin^2?=

A:

Q: stn 6 21 cos 0 18 tan 0

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 the figure to find the exact values of sin(2u), cos(2u), and tan(2u). (4, -7) sin(2u) -0.87 |x…

A: Topic:- trigonometry ratios

Q: cos 240°. tan 290° cot 340°. sin135°

A:

Q: Evaluate without using a calculator.     cos    -1 ( cos 7pi/6)

A: Given cos-1cos7π6

Q: Write cos 28° in terms of sine. cos 28° sin %3D

A:

Q: sec 30°cos 60° = 1

A: NOTE: Refresh your page if you can't see any equations. . as we know,

Q: Determine the exact value of cos 45° x tan 60° sin 30°

A: We know, cos(45∘) = 12 ,sin(30∘) = 12 , and  tan(60∘) = 3

Q: Write cos 0 cot 0 in terms of sin 0 and cos 0

A: The given trigonometric expression is: cos θ cot θ   Solution is below:

Q: Find the exact value of the expression. cos(160°) cos(25°) + sin(160°) sin(25°)

A:

Q: tan θ = 26.0307.Use a calculator to find the value of the acute angle θ to the nearest degree.

A: Consider the provided expression, tanθ=26.0307 Use a calculator to find the value of the acute angle…

Q: If cos(θ)=−16cos(θ)=-16 and θθ is in the 3rd quadrant, find sin(θ)sin(θ)

A:

Q: The exact value of tan COS -11 Cos 2 is: 2 1

A: to find the exact value of tancos-112

Q: if cos theta = 4/11 and tan theta &lt; 0, find csc theta

A: Given:

Q: Find a cofunction with same value as tan 72°. The cofunction is ?

A: Write the cofunction of tanx and than solve for angle.

Q: If cosθ=5/13, (a). find sinθ and tanθ; (b). find sin2θ and cos2θ.

A:

Q: give the exact value of sine 60 degrees

A: sin(60°) = √3/2

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.