Trigonometría Ejemplos

$\csc (990)$

Step 1

Remove full rotations of $360$ ° until the angle is between $0$ ° and $360$ °.

$\csc (270)$

Step 2

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosecant is negative in the third quadrant.

$- \csc (90)$

Step 3

El valor exacto de $\csc (90)$ es $1$ .

$- 1 \cdot 1$

Step 4

Multiplica $- 1$ por $1$ .

$- 1$