Part b)-Worked out in a similar way, with CB to be replaced by CA. Part c) – Refer to the lecture book for determining the direction angles and direction cosines directly from a unit vector that has ...

Calculate the length AB. Give the answer to one decimal place. Label the sides of the triangle \(o\), \(a\) and \(h\). Next choose the correct ratio from \(s^o_h~c^a_h~t^o_a\). The length \(h\) is ...

The sides of right-angled triangles are labelled opposite, hypotenuse and adjacent. Trigonometry explores the relationship between sides and angles in right-angled triangles. The hypotenuse is the ...

Mathematics is one of the scoring subjects which can definitely help students to score good marks in any engineering exams. Before appearing for any exam students should revise all concepts and ...

A procedure due to L. D. Servi for evaluating sines and cosines of certain angles in terms of nested square roots of 2 is discussed. It is shown how it can be applied using the binary digits of the ...