# Find the principal solutions of sin x − 1 = 0 - Mathematics and Statistics

Sum

Find the principal solutions of sin x − 1 = 0

#### Solution

sin x = 1

sin x = sin (pi/2)

such that 0 ≤ pi/2 < 2pi

The required principal solution is pi/2.

Concept: Trigonometric Equations and Their Solutions
Is there an error in this question or solution?