sin theta = cos theta
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Answer:
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[tex] \sin( \theta) = \cos( \theta ) [/tex]
[tex] \sin( \theta ) = \sin(90 \degree - \theta ) [/tex]
[tex] \theta = 90 \degree - \theta[/tex]
[tex]2 \theta = 90 \degree[/tex]
[tex] \boxed{\theta = 45 \degree}[/tex]