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Introduction to Angle & Trigonometric Ratios

  • Consider a revolving line AB. Suppose that it revolves in anticlockwise direction starting from its initial position AC.

    Angle? Angle? : Angle between B, A, CAngle? Angle? : Angle between B, A, CVector uVector u: Vector [A, B] Vector uVector u: Vector [A, B] Vector vVector v: Vector [A, C] Vector vVector v: Vector [A, C] ? text1 = “? “Ctext1_1 = “C”Atext1_2 = “A”Btext1_3 = “B”

    an Angle Between Two Lines AB and AC

    In figure an angle between two lines AB and AC is shown.

  • The… (836 more words) …

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Important Trigonometric Ratios

T - Ratios of Some Standard Angles:

T – ratios of some standard angles are given in table. Which are easily getting by following figure.

Circle cCircle c: Circle through F with center ASegment fSegment f: Segment [A, G’] Segment gSegment g: Segment [A, G’_1] Segment hSegment h: Segment [A, G’_2] Segment pSegment p: Segment [A, H’] Segment qSegment q: Segment [A, H’_1] Segment rSegment r: Segment [A, H’_2] Vector uVector u: Vector [A, B] Vector uVector u: Vector [A, B] Vector vVector v: Vector [A, C] Vector v<span class="more">… (3457 more words) …</span>

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