cos(60) = 0.5 The simplest way is to use a calculator.
y = arcsin( cos 48 ); arcsin may be seen as sin-1 on your calculator.
The exact value of (\cos(40.7^\circ)) is not a simple rational number or a well-known trigonometric value. To find its numerical approximation, you can use a calculator, which gives (\cos(40.7^\circ) \approx 0.7578). For precise applications, it's best to use a calculator or software that can compute trigonometric functions.
tan cot sec cosec sin cos cot
They are used to approximate functions like sin(x) and cos(x), so a calculator, for example, can calculate sin (x) and cos(x), which are infinite series functions.
Cos is short for Cosine ( Complementary Sine) Similrly Sin is short for Sine Tan is short for Tangent.
cos(60) = 0.5 The simplest way is to use a calculator.
For any calculator Sec(Secant) = 1/Cos Csc (Cosecant) = 1/ Sin Cot (Cotangent) = 1/Tan
It is usually [Shift] [cos] though on some calculators it may be [2ndF] [cos] The arc cos function is often written as cos-1 or acos, and on most calculators is written above the button to press; the colour of the text used to write it usually matches up with the key needed to press before the cos button. On Casio calculators, it is [shift][cos] with the shift key labelled in yellow, and cos-1 written in yellow. On a Texas Instruments calculator it is [2nd] [cos] with the 2nd key labelled in blue and the cos-1 written in blue. On a Hewlett Packard calculator it is [<up_arrow_pointing_left>][cos] with the up_arrow_pointing left a white key with a black arrow and ACOS written in white above the cos button.
This can be done on a graphing calculator by making sure you have your calculator in degrees mode, and then tentering the cos(23). You get an answer of 0.9205048535.
Press the button labeled "COS"
It is labeled as "cos-1" on the calculator. But arcosine and inverse cosine are just two names for the same thing.
y = arcsin( cos 48 ); arcsin may be seen as sin-1 on your calculator.
the answer is 180 degrees; since cos 180⁰ = -1, then cos-1 -1 = 180⁰ mathematically cos-1-1 here calculator is required and you'll get answer 180 degrees.....
Cos is short for 'Cosine' / It is the complementary curve to 'Sine'.
sec x = 1/cos x → sec³ x = 1/cos³ x or sec³ x = (cos x)^-3 Therefore to enter sec³ x on a calculator: Newer, "natural" calculators: mathio: sec³ x → [x-power] [cos] [<angle>] [)] [navigate →] [(-)] [3] [=] lineio: sec³ x → [(] [cos] [)] [)] [x-power] [(-)] [3] [)] [=] Older, function acts on displayed number calculators: sec³ x → [angle] [cos] [x-power] [3] [±] [=]
Isolate cos (t): cos(t)=1/3. Use a calculator from here because the answer is not an integer or a simple number.