Question

Écrivez toutes les formules trigonométriques.

Answer 1

• sinθ = 1/cosecθ

• cosecθ = 1/sinθ

• cosθ = 1/secθ

• secθ = 1/cosθ

• tanθ = 1/cotθ

• cotθ = 1/tanθ

• sinθ = p/h

• cosθ = b/h

• tanθ = p/b

• cotθ = b/p

• secθ = h/b

• cosecθ = h/b

• sin(-θ) = -sinθ

• cos(-θ) = cosθ

• tan(-θ) = -tanθ

• cot(-θ) = -cotθ

• sec(-θ) = secθ

• cosec(-θ) = -cosecθ

• sin(90°-θ) = cosθ

• cos(90°-θ) = sinθ

• tan(90°-θ) = cotθ

• cot(90°-θ) = tanθ

• sec(90°-θ) = cosecθ

• cosec(90°-θ) = secθ

Answer 2

$\large\underline\bold{ANSWER \red{\huge{\checkmark}}}$

sinθ = 1/cosecθ

cosecθ = 1/sinθ

cosθ = 1/secθ

secθ = 1/cosθ

tanθ = 1/cotθ

cotθ = 1/tanθ

sinθ = p/h

cosθ = b/h

tanθ = p/b

cotθ = b/p

secθ = h/b

cosecθ = h/b

sin(-θ) = -sinθ

cos(-θ) = cosθ

tan(-θ) = -tanθ

cot(-θ) = -cotθ

sec(-θ) = secθ

cosec(-θ) = -cosecθ

sin(90°-θ) = cosθ

cos(90°-θ) = sinθ

tan(90°-θ) = cotθ

cot(90°-θ) = tanθ

sec(90°-θ) = cosecθ

cosec(90°-θ) = secθ