Trigonometry Examples

$\arcsin (7 π)$

Step 1

Subtract $2 π$ from $7 π$ .

$A = 7 π - 2 π$

Step 2

The resulting angle of $5 π$ is positive, less than $2 π$ , and coterminal with $7 π$ .

$A = 5 π$

Step 3

Subtract $2 π$ from $5 π$ .

$A = 5 π - 2 π$

Step 4

The resulting angle of $3 π$ is positive, less than $2 π$ , and coterminal with $7 π$ .

$A = 3 π$

Step 5

Subtract $2 π$ from $3 π$ .

$A = 3 π - 2 π$

Step 6

The resulting angle of $π$ is positive, less than $2 π$ , and coterminal with $7 π$ .

$A = π$

Step 7

The result can be shown in multiple forms.

Exact Form:

$A = π$

Decimal Form:

$A = 3.14159265 \dots$