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They are both trig values, but not equal. Tan 45 is 1 and sin 45 is 0.7071

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โˆ™ 2015-04-18 02:54:12
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A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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Q: Does tan 45 degrees and sin 45 degrees equal trig values?
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Using exact values find the numerical value of sin 30 degrees cos 240 degrees plus sin 210 degrees sin 300 degrees?

SQRT(3)/4 - 1/4

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No; those could be three different values, or sometimes two of them might be the same. For example, if the angle is 45 degrees, the values are about... cos:0.707 sin: 0.707 tan: 1 For 45 degrees, the cosine and sine are the same. For 36 degrees, cos:0.809 sin: 0.588 tan: .727

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What is the co-function of sin 19 degrees?

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What trigonometric value is equal to cos 62?

The solution is found by applying the definition of complementary trig functions: Cos (&Theta) = sin (90°-&Theta) cos (62°) = sin (90°-62°) Therefore the solution is sin 28°.

Can you transform sine functions into cosine functions?

If you know the measure of one angle, and the length of one side of a triangle, you can find the measures of the other sides and angles. From there, you can find the values of the other trig functions. cos (x) = sin (90-x) in degrees there are other identities such as cos^2+sin^2=1, so cos^2=1-sin^2

Sine divided by cosine?

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What is the exact values of sin 2 pi?

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What are the ways on how to solve trigonometric equations?

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Conversion values are given by calculators or trig tables.Example: After solving, you get cos x = 0.732. Calculators (or trig table) gives x = 42.95 deg.. The Unit Circle will give an infinity of other arcs x that have the same cos value. These values are called extended answers.Example: Get sin x = 0.5. Trig table gives x = Pi/6. The unit circle give an infinity of extended answers.Concept for solving trig equations.To solve a trig equations, transform it into one or many basic trig equations.Basic trig equations.There are 4 of them. They are also called "trig equations in simplest form".sin x = a ; cos x = a (a is a given number)tan x = a ; cot x = aSolving basic trig equations.The solving method proceeds by considering the various positions of the variable arc x, rotating on the trig circle, and by using calculators (or trig tables).Example 1. Solve sin x = 0.866Solution. 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See book titled "Solving trig equations and inequalities" (Amazon e-book 2010)Examples of trig identities: sin^2 a + co^2 a = 1 ; sin 2a = 2sin a.cos a ;1 - cos 2a = 2 sin^2 a ; cos a = (1 - t^2)/(1 + t^2)Methods to solve trig equations.There are 2 common methods to solve a trig equation, depending on transformation possibilities.Method 1. Transform it into a product of many basic trig equations, by usingcommon transformation tools or by using trig identities.Example 3. Solve 2cos x + sin 2x = 0.Solution. Replace sin 2x by 2sin x.cos x (Trig Identity #10)2cos x + sin 2x = 2cos x + 2sin x.cos x = 2cos x(1 + sin x).Next, solve the 2 basic trig equations: cos x = 0 and sin x + 1 = 0.Example 4. Solve cos x + cos 2x + cos 3x = 0.Solution. Using trig identity #26, transform it into a product of 2 basic trig equations: cos 2x (2 cos x + 1) = 0. Next, solve the 2 basic trig equations: cos 2x = 0 and cos x = -1/2.Method 2. 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Next solve the 2 trig basic equations: sin x = t = 1 and sin x = t = -2/5.The common period of a trig equation.The common period of a given trig equation must equal the least multiple of all the contained trig functions' periods.Example: The equation cos x + tan x = 1 has 2Pi as common period.The equation f(x) = sin 2x + cos x = 0 has 2Pi as common periodThe equation sin x + cos x/2 has 4 Pi as common period.Unless specified, a trig equation must be solved covering at least one common period.Solving special types of trig equations.There are a few special types of trig equations that require specific transformations.Examples: asin x + bcox x = ca(sin x + cos x) +bsin x.cos x = casin^2 x + bsin x.cos x + c cos^2 x = 0.Checking answers.Solving trig equation is a tricky work that easily leads to errors and mistakes. The answers should be carefully checked.After solving, you may check the answers by using graphing calculators. To know how, see the book mentioned above.(This article was written by Nghi H. Nguyen, the co-author of the new Diagonal Sum Method for solving quadratic equations)

Why does x equal 0 when finding the sin of 90 degrees?

On the unit circle sin(90) degrees is at Y = 1 and as that is on the Y axis X will equal = 0. Ask yourself. Where would 90 degrees be on a 360 degree circle? Straight up.

What is sin 57 degrees?

sin 57 degrees

How do you find C from sin C equals 0.3328 using a calculator?

( are you in radians, or degree mode? will do both) Radians: sin C = 0.3328 arcsin(0.3328) = C =0.3393 radians --------------------- Degrees: sin C = 0.3328 arcsin(0.3328) = 19.44 degrees ------------------------- arcsin is a secondary function on most calculators and you should recognize the algebraic/trig manipulations.

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