Trigonometry questions | form two Basic Mathematics

(3111) Question Category: Mathematical Calculation

Given the following figure, find the value of h, correct to one decimal place

Pythagorous theorem

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(3112) Question Category: Mathematical Calculation

A building has an angle of elevation of 35° from a point P, and an angle of elevation of 45° from a point Q. If the distance between points P and Q is 30cm; what is the height of the building? (Write your final answer correct to two decimal places).

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(3114) Question Category: Mathematical Calculation

A ladder 12m long leans against the top of vertical wall and makes an angle of 52 degrees with the wall. Find the height of the wall

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(3303) Question Category: Mathematical Calculation

Without using tables simplify, (cos^{2}45^{circ}-sin^{2}30^{circ})+(cos 30^{circ}+sin60^{circ})

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(3304) Question Category: Mathematical Calculation

  1. Given angle B is an acute angle and tan^{-}B=frac{4}{3} . Find cos 2B if cos 2B =cos^{2}B-sin^{2}B
  2. Find the height of a building, if the angle of elevetion of its top from a point 70m away is 25°

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