trigonometry

Question: If the angle q is divided into two parts a and b in such a way Answer: By data a + b = q Dividing (1) by (2), we get ..

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Question: Prove that tan 70 o = tan 20 o + 2 tan 50 o . Answer: ..

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(data) AB = BC = x We can draw another triangle ABD with BD = x + 10 and AB = x. x = 5.774 + 0.5774 x 0.4226x = 5.774 = 13.7 m height of the tower = 13.7 m. 2 n d Method (By formula ): In proved. ..

The height of a building or the width of a river can be measured without climbing or crossing it. In this chapter we will show how it is made possible. Some suitable angles and distances will be measured to achieve the above resul..

Angle of elevation is the angle between a horizontal line and the line joining the observer's eye to some object above the horizontal line. Angle of depression is the angle between a horizontal line and the line joining the observer's eye to some object beneath the horizontal lin..