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Introduction to Trigonometric Functions

Szerző:amiller_pavcs, azb, Miss Evans
This is an introduction to the main trigonometric functions of sine, cosine, and tangent. Sine, cosine, and tangent are commonly abbreviated as 'sin', 'cos', and 'tan'. The input of a trigonometric function is an angle measure (labeled as θ below).
Move the right angle vertex and the slider to change the size and shape of the triangle. Observe what happens to the values.

How do the trig functions relate to the ratios of the sides?

Ellenőrizze válaszát

Cosine

cos(θ) =

Jelöld be válaszodat
  • A
  • B
  • C
Check my answer (3)

Tangent

tan(θ) =

Jelöld be válaszodat
  • A
  • B
  • C
Check my answer (3)

Sine

sin(θ) =

Jelöld be válaszodat
  • A
  • B
  • C
Check my answer (3)

SOHCAHTOA

SOHCAHTOA is a mnemonic device used in Trigonometry to help us remember the functions. What does it stand for? Hint: How does it relate to the above ratios?

Ellenőrizze válaszát
Make note of SOHCAHTOA for future reference.

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