Learn the basic trigonometry ratios in trigonometry chapter. As beginners one should learn these trigonometry ratios. A ratio of trigonometry plays a vital role in learning trigonometry chapter. Without knowing these ratios we can’t do any problem in trigonometry.
What is a trigonometry?
Trigonometry is a branch of mathematics, where we are going to study about the relationship between sides and angles of right angled triangle.
Trigonometry ratios table:
Δ ABC be a right angled triangle. The side AB is opposite side to θ. The side BC is adjacent side to θ. AC is the hypotenuse in triangle ABC.
sin cos tan cosec sec cot
Example on trigonometry ratios:
In a Δ ABC, AB = 3 cm and BC = 4 cm then find the values of all six trigonometric ratios.
In a Δ ABC,
AB = 3 cm and BC = 4 cm,
Then AC = 5 cm. (According to Pythagoras theorem).
sin = =
cos = =
tan = =
cosec = =
cot = =