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  1. A

    Please help me with this question from Trials

    thankyou:)
  2. A

    Please help me with this question from Trials

    AOB is a diameter of a circle with centre O and radius 1 metre. AC is a chord of the circle such that BAC = θ, where 0 < θ < π/2. The area of that part of the circle contained between the diameter AB and the chord AC is equal to one quarter of the area of the circle. i) Show that θ + (1/2)sin2θ...
  3. A

    HELP! Stuck with this Question from my Trials

    thank you!
  4. A

    HELP! Stuck with this Question from my Trials

    thanks but when i search on the web "differentiate cosec" i see it is given by: d (cosec x) = -cosec x cot x ?? dx is it just another formula?
  5. A

    HELP! Stuck with this Question from my Trials

    would you mind helping me with ii)? i dont know how to differentiate 15 cosec α.
  7. A

    HELP! Stuck with this Question from my Trials

    OH sh1t!! cant believe i did cos.. cant believe it! Thanks alot man :)
  8. A

    HELP! Stuck with this Question from my Trials

    Please Help! a) A vertical tower CD of height 15 metres stands with its base C on horizontal ground. A is a point on the ground due South of C such that the angle of elevation of the top D of the tower from A is (π/4) radians. B is a variable point on the ground due East of C such that the...
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