Trigonometry questions | form four Basic Mathematics

(4256) Question Category: Mathematical Calculation

  1. Find the value of frac{sin (150^{circ})cos(315^{circ})}{ an(300^{circ})} without using mathematical tables.
  2. Calculate the angles of a triangle which has sides 4m, 5m and 7m.

Answer / Solution

UNSOLVED

(4493) Question Category: Mathematical Calculation

Show that triangle ABC is right-angled where ​A​ = (-2,-1), ​B​ = (2,1) and ​C​ = (1,3).

Answer / Solution

UNSOLVED

(4498) Question Category: Mathematical Calculation

In the figure below, AE = 20 m, EB =20sqrt{2} m and DAE=45^{circ}.

Trigonometry questions form four

Find:

  1. The length: DE, AD and AB.
  2. The area of triangle ABE, leaving the answer in surd form.

 

Answer / Solution

UNSOLVED

(6614) Question Category: Mathematical Calculation

If sin(x-20^{circ})=frac{sqrt{3}}{2} find the values of x for 0^{circ}leq xleq 180^{circ}.

Answer / Solution

UNSOLVED

(6615) Question Category: Mathematical Calculation

A kite flying at a height of 50m is attached to a string which makes an angle of 60° with the ground. What is the length of the string?. (Leave your answer in surd form).

Answer / Solution

UNSOLVED

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