Trigonometry

• The side in front of the reference angle is called perpendicular and the remaining side is...}
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Trigonometric Ratios of Some Standard Angles

• h² = p² + b²
• Different angles have a...}
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Trigonometric ratios of any angle

1. Both OM and MP are positive when OP is in the first quadrant.
2. OM is negative and...}
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Signs of Trigonometric Ratios

1. If n is even, there will be no change in the trigonometric ratios.
   i.e. sin(n ×...}
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