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What is the memory devise to remember the order of the trigonometric ratios?
Wiki User
∙ 10y ago
One that is popular in the UK is
SOH - CAH - TOA
Sine = Opposite/Hypotenuse and so on.
You are meant to remember it as rhyming with "soccer tour". I don't find the latter part particularly convincing, though.
Wiki User
∙ 10y ago
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What can help you remember the ratios for cosine and tangent?
A memory trick that I learned for trigonometric values is:Sin: opp/hypCos: adj/hyptan: opp/adjSoh-Cah-Toa
How many trigonometric ratios are there?
Six.
What trigonometric ratios cannot be greater than one?
Sine and cosine.
When would you use the law of sines or law of cosines instead of a trigonometric ratio?
Trigonometric ratios, by themselves, can only be used for right angled triangles. The law of cosines or the sine law can be used for any triangle.
How do you find trigonometric ratios without a calculator?
There are a few ways. First, there are a multitude of trigonometric tables which list the sines and cosines of a variety of values. if you now one trigonometric value of a number, you can find all the others by hand, and you can also use a Taylor series approximation to find a fairly accurate value. (In fact, many calculators use Taylor series to find trigonometric values.)
What can help you remember the ratios for cosine and tangent?
A memory trick that I learned for trigonometric values is:Sin: opp/hypCos: adj/hyptan: opp/adjSoh-Cah-Toa
How many trigonometric ratios are there?
Six.
Why do similar triangles have the same trigonometric ratios?
Trigonometric ratios are characteristics of angles, not of lengths. And, by definition, the corresponding angles an similar triangles have the same measures.
What does trigonometric identities all about?
They are true statements about trigonometric ratios and their relationships irrespective of the value of the angle.
How did people measure the height of Mt Everest?
Trigonometric ratios.
What is the difference between a tangent and a secant?
They are different trigonometric ratios!
What the three main trigonometric ratios mean?
sin, cos and tan
What trigonometric ratios cannot be greater than one?
Sine and cosine.
Explain how distances can be found using a right triangle?
Using trigonometric ratios.
Can this be used for sines?
No. Sines are well defined trigonometric ratios whereas "this" is not defined at all.
What complements tan 132 degree angle?
Complements are defined for angles, not trigonometric ratios of angles.
Does a rectangular prism have any secants?
Yes, since it has vertices it has angles and since it has angles it has trigonometric ratios
