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what is meaning of sin and cos..?

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Lifelong Maths teacher

If we take a right triangle ABC with angle B right angle then sine of angle C is the ratio of opposite side by hypotenuse i.e., AB by AC. And cosine of angle C is adjacent side by hypotenuse i.e., BC by AC.
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trigonometric functions
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Software Professional Trainer with 26+ years of Experience in Software Design and Development

Mathematical function used in trigonometry sine -> Sin=opposite /hypotenuse cosine -> Cos =adjacent/hypotenuse
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Graduate

In a right angle triangle cos means (adjacent side/hypotenuse) and sin means (opposite side/hypotenuse)
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Like to train students & bring out the best out of them

They are trigonometric functions...
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Like to train students & bring out the best out of them

sin = opposite / hypotenuse
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Like to train students & bring out the best out of them

cos = adjacent / hypotenuse
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TEACHING IS MY PASSION-I STILL STRIVE TO BETTER MY TEACHING ABILITIES

The full form of 'Sin' and 'Cos' are 'Sine' and 'Cosine' respectively.These words do not carry any meaning on their own, unless each of them is followed by an 'angle'. Ex: Sine'A' OR Sin'A' and Cosine'B' OR Cos'B' which means that Sin'A' Stands for the Sine ratio of angle'A" Which is defined in Trigonometry,...
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The full form of 'Sin' and 'Cos' are 'Sine' and 'Cosine' respectively.These words do not carry any meaning on their own, unless each of them is followed by an 'angle'. Ex: Sine'A' OR Sin'A' and Cosine'B' OR Cos'B' which means that Sin'A' Stands for the Sine ratio of angle'A" Which is defined in Trigonometry, as the Ratio of the Opposite side of Angle'A' to the Hypotenuse, of a Right angled. Triangle containing this angle'A'. Similarly,Cos'B' is defined as the ratio of the adjacent side of angle'B' to the Hypotenuse of a Right angled Triangle containing this angle 'B'. read less
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These are trignometry functions used by angle.
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Counseling Psychologist, Special Educator in LD,.Educational Psychologist, School Counselor.

Sine is abbreviated “sin” and cosine is “cos” these are the two important trigonometric function. All other trig functions can be expressed in terms of them. An equation that describes their relations is Sin (A) =opposite /hypotenuse Cos (A) =adjacent/hypotenuse
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