**how does sin(pi/4)= sqrt2/2? Yahoo Answers**

8/07/2012 · Trig Equations help how do i find all solutions to sin(5x-pi/4)=-1 If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.... 8/11/2008 · I would only add visualizing PI as a horizontal, then dividing it 4 times to get an angle like the sun in the afternoon. Once you know that angle, then draw a line straight out one unit and a line straight up one unit. Sin is ratio of opp/hyp, so (line staight up) / …

**Mathway Find the Exact Value sin(pi/3)cos(pi/4)-sin(pi/4**

20/01/2011 · 1. The problem statement, all variables and given/known data Expand sin x about the point x = pi/4. Hint: Represent the function as sin x = cos (y + pi/4) and assume y to be small... Find all y-values root2/2 and answer with the angles, namely pi/4 and 3pi/4. For trig the input is the angle and the output is the ratio. For an inverse trig the input is the ratio and the output is the angle

**how does sin(pi/4)= sqrt2/2? Yahoo Answers**

Algebra -> Trigonometry-basics-> SOLUTION: i must find the exact value of six trig functions of pi/4 radians. sin pi/4 csc pi/4 cos pi/4 sec pi/4 tan pi/4 cot pi/4 please help me i … how to know what version of excel Summary : The sin trigonometric function to calculate the sine of an angle in radians, degrees or gradians. Sin online. Description : Sine function

**Expand Sin(x) about Pi/4 Physics Forums**

6/11/2007 · Note that t3nnisHe is almost correct ; use a minus sign rather than the plus. The sine function is increasing and sin(pi/4) is 1/(2^.5). Thus sine of pi/8 must be smaller. how to find the side of square info area 20/01/2011 · 1. The problem statement, all variables and given/known data Expand sin x about the point x = pi/4. Hint: Represent the function as sin x = cos (y + pi/4) and assume y to be small

## How long can it take?

### `sin(pi/12)cos(pi/4) + cos(pi/12)sin(pi/4)` Find eNotes

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## How To Find Sin Pi 4

11/06/2008 · the two equal acute angles are both 45 degrees = pi/4 radians. if the two equal sides have length "a", the hypotenuse has length "a*sqrt(2)". if the two equal sides have length "a", the hypotenuse has length "a*sqrt(2)".

- Free flashcards to help memorize facts about Study the six trigonometric functions!. Other activities to help include hangman, crossword, word scramble, games, matching, quizes, and tests.
- sin 3A = 3 sin A − 4 sin 3 A. sin 9°: For example, the sine of 9 degrees is the sine of (3×3°). So, with A = 3, we arrive at. And so on. sin 1°: Now, to find the sine of one degree, one needs to know sine of one third of three degrees! One needs to solve the above for sin (A) in terms of 3A, and this involves solving the cubic. As you know, the cubic was solved many, many years ago
- Find sin ((5pi)/4) Ans: -sqrt2/2 Trig unit circle shows --> sin ((5pi)/4) = - sin (pi/4) Trig Table of Special Arcs gives --> sin (pi/4) = sqrt2/2, therefor: sin ((5pi)/4) = - sqrt2/2 . SOCRATIC Subjects . Science Anatomy & Physiology Astronomy Astrophysics Biology Chemistry Earth Science Environmental Science Organic Chemistry Physics Math Algebra Calculus Geometry Prealgebra Precalculus
- 24/08/2018 · The function f(x) = sin 2x has Pi as period. The function f(x) = cos (x/2) has 4Pi as period. If the period is specified in the problem/test, you have to only find the solution arc(s) x within this period.