The sign of value of sine function in first quadrant is positive.

$\sin{\theta} > 0$

The sign of value of cosine function in first quadrant is positive.

$\cos{\theta} > 0$

The sign of value of tangent function in first quadrant is positive.

$\tan{\theta} > 0$

The sign of value of cotangent function in first quadrant is positive.

$\cot{\theta} > 0$

The sign of value of secant function in first quadrant is positive.

$\sec{\theta} > 0$

The sign of value of cosecant function in first quadrant is positive.

$\csc{\theta} > 0$

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