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Simplify cos(x - pi/2)? | Yahoo Answers

source : yahoo.com

Simplify cos(x – pi/2)? | Yahoo Answers

The answer is simply sin x.

To visualize it, imagine the the cos x graph on an xy-plane. Now the phase shift is -π/2, so the cos x graph will be shifted to the right by π/2. But on the cos x graph, the sine graph begins at -π/2. Since that point is now being shifted to (0,0), then the entire graph is a sine graph. So, the answer is sin x.

Cosine Calculator | cos(x) calculator

Cosine Calculator | cos(x) calculator – cos-1. = Calculate. × Reset.cos(4*X)^2 = 1. reply. ответить.The cosine function is an even function, for every real x, `cos(-x)=cos(x)`. The consequence for the curve representative of the cosine function is that it The calculator has a solver which allows it to solve equation with cosine of the form cos(x)=a. The calculations to obtain the result are detailed, so…

Решение тригонометрических уравнений | Онлайн калькулятор – We know that ,cos is an even function.#=>cos(-theta)=costheta# #:.cos(x-pi/2)=cos(pi/2-x)=sinx# OR #cos(A-B)=cosAcosB+sinAsinB# #cos(x-pi/2)=cosxcos How do you apply the sum and difference formula to solve trigonometric equations? How do you evaluate #sin(45)cos(15)+cos(45)sin(15)#?c o s 2 x = cos 2 ⁡ x − s i n 2 x = 2 c o s 2 x − 1 = 1 − 2 s i n 2 x.cos(x – pi/2) = cos(pi/2 – x) because cosine is an even function. = sin(x) because co-functions of complements are equal.

Решение тригонометрических уравнений | Онлайн калькулятор

Online calculation with the function cos according to the cos(pi/2) – Чему равен cos(x-pi/2). Посмотри ответы прямо сейчас! 6°. Функція задана формулою y=0,3х – 8,4. Не виконуючи побудови:1) знайдіть нулі функції;2) з'ясуйте, чи проходить графік функції через точку С(10; – 21,6).7•. Знайдіть область визначення функції .8•. Побудуйте в одній системі…\bold{\sin\cos}. \bold{\ge\div\rightarrow}. \bold{\overline{x}\space\mathbb{C}\forall}. \bold{\sum\space\int\space\product}. \bold{\begin{pmatrix}\square&\square\\\square&\square\end{pmatrix}}.

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