Solve the trigonometric equation for 0<θ<2π:√sinθ-1=0

Solve the trigonometric equation for image

A.

B.

C.

D.

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√2sinθ-1=0, √2sinθ=1, sinθ=1/√2, θ=¼π, ¾π (that is, π-π/4). π=180°, so ¼π=45°. Answer D.
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