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  1. E

    Year 11 3U trigonometry question, please help?

    Thankyou so much! :)
  2. E

    Year 11 3U trigonometry question, please help?

    So the question is as follows.( . * - means degrees.) From a point P an oberserver finds that the angle of elevation of the top of a vertical tower is a*. After walking x meters horizontaly towards the foot of the tower, the observer finds that the angle of elevation is b*. If the height of...
  3. E

    Could someone please help with these two questions??

    1. If AB, AC are two tangents to a circle and angle BAC = 84 degrees, what are the sizes of the angles in the two segments into which BC divides the circle? 2. P is a point within a circle of radius 13cm and XY is any chord drawn through P so that XP x PY = 25. Find the length of OP if O is...
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