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www.reference.com/math/value-sin-40-degrees-1d3c2e1b582a285d

The value of sin 40 degrees is 0.64278760968 as seen on a calculator. The sine, cosine and tangent are all based on the right-angled triangle and are useful calculations in trigonometry. These three functions have common abbreviations where sine is "sin", cosine is "cos" and tangent is "tan".

www.answers.com/Q/What_is_the_value_of_sin_40_degrees

What is the value of sin 40 degrees? SAVE CANCEL. already exists. Would you like to merge this question into it? MERGE CANCEL. already exists as an alternate of this question. ... It is:- sin(40 ...

www.quora.com/How-can-I-calculate-sin-40°-mentally

sin 3°: The above leads you to one of the paths to sine of 3 degrees and to sine of 6 degrees. For example, sine (18° - 15°) will give us the sine of 3 degrees. which is. sin 3° = sin (18° − 15°) = sin 18° cos 15° − sin 15° cos 18° This gives us the following value of sin 3°:

mathinstructor.net/2012/08/values-of-trigonometric-ratios...

Values of Trigonometric ratios for 0, 30,45, 60 and 90 degrees I have noticed that students cannot actually remember values of six trigonometric ratios (sin, cos, tan, cosec, sec and cot) for 0, 30, 45, 60 and 90.These values are used very often and it is recommended from my point of view that student should be able to tell the values instantly when asked.

www.quora.com/What-is-the-value-of-Sin-40

because you said 40 and not 40 degrees I assume that is in radians. The sinus curve is periodical so after every 2 “pi”-s, repeating itselves. Let’s say about 3–4 digits precision is enough. But at the start of the calculation we have to use more ...

www.webconversiononline.com/trigonometry-calculator.aspx?type=sine&...

Find value of Sin(40) - Sine or Calculate value of Sin, Cos, Tan, Cot, Cosec, Sec, Sinh, Cosh, Tanh, Coth, Cosech, Sech, Asin, Acos, ATan, ACot, ACosec, ASec and ...

math.la.asu.edu/~surgent/mat170/Exact_Trig_Values.pdf

Exact Values of the Sine and Cosine Functions in Increments of 3 degrees The sine and cosine values for all angle measurements in multiples of 3 degrees can be represented in terms of square-root radicals, and the four common operations of arithmetic. These values can be determined geometrically using three useful right triangles.

www.teachoo.com/5225/955/What-is-value-of-sin--cos--tan-at...

What is value of sin 30? What about cos 0? and sin 0? How do we remember them? Let's learn how. We will discuss what are different values of sin, cos, tan, cosec, sec, cot at 0, 30, 45, 60 and 90 degrees and how to memorise them. So, we have to fill this table

www.mathwarehouse.com/trigonometry/sine-cosine-tangent...

Chart with the sine, cosine, tangent value for each degree in the first quadrant

www.maths.surrey.ac.uk/hosted-sites/R.Knott/Fibonacci/simpleTrig.html

Exact Trigonometric Function Values What angles have an exact expression for their sines, cosines and tangents? You might know that cos(60°)=1/2 and sin(60°)=√3/2 as well as tan(45°)=1, but are 30, 45 and 60 the only angles up to 90° with a formula for their trig values?