Question

why are there only 6 trigonometric ratios

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Answer 1

HeÿA frnd ❤⤵⤵

Because only six 6 ratios can define ratios of all sides

sin
cos
tan
cosec
sec
cot

HöPe ïT hèLps u ☺

Answer 2

There are only 6 trigonometric ratios because only 6 ratios can define ratios of all sides.

For example,

If you want ratio between perpendicular and hypotenuse there is sin.

If you want ratio between perpendicular and base there is tan.

If you want ratio between base and hypotenuse there is cos.


If you want ratio between hypotenuse and perpendicular there is cosec.

If you want ratio between hypotenuse and base there is sec.

If you want ratio between base and perpendicular there is cot.


OK, What ratio you need else all ratios are defined by these 6 trigonometric ratios.


Thank you.