Trigonometry – ICSE Solutions for Class 10 MathematicsICSE SolutionsSelina ICSE SolutionsGet ICSE Solutions for Class 10 Mathematics Chapter 18 Trigonometry for ICSE Board Examinations on APlusTopper.com. We provide step by step Solutions for ICSE Mathe…

Trigonometric Ratios Of Some Specific AnglesThe angles 0°, 30°, 45°, 60°, 90° are angles for which we have values of T.R.θ 0°30°45°60°90°Sin01/21/√2 √3/21 Cos1 √3/2 1/√21/20Tan 0 1/√31√3∞Cosec∞2√22/√31Sec12/√3 √22∞Cot∞√311/√30Trigonometric Ratios Of Some…

Trigonometry: Solving for an AngleUsing Trigonometric Functions to Find a Missing AngleThe initial set up for solving these problems will be the same as that for finding a missing side.To finish the problem, however, it will be necessary to use a calcula…

Heights And Distances Angle Of Elevation The angle of elevation of the point viewed is the angle formed by the line of sight with the horizontal when the point being viewed is above the horizontal level, i.e. the case when we raise our head to look at t…

Trigonometry: Solving for a SideThe word ‘trigonometry’ is derived from the Greek words ‘tri’(meaning three), ‘gon’ (meaning sides) and ‘metron’ (meaning measure). Trigonometry is the study of relationships between the sides and angles of a triangle. Ap…

Trigonometric Identities(1) \(\tan \theta =\frac{\sin \theta }{\cos \theta }\text{ (linear)}\) Conditional trigonometrical identitiesWe have certain trigonometric identities. Like sin2 θ + cos2 θ = 1 and 1 + tan2 θ = sec2 θ etc. Such identities are id…

Are you afraid of big numbers and complex equations? Then, don’t be because Maths is not that much complicated than any mess. Maths can become your friend if you put some effort to understand and solve it. If you’re dreaming to be the next math genius, t…

Trigonometric Ratios Of Complementary Angles We know Trigonometric ratios of complementary angles are pair of angles whose sum is 90° Like 40°, 50°, 60°, 30°, 20°, 70°, 15°, 75° ; etc, Formulae: sin (90° – θ) = cos θ,         cot (90° – θ) = tanθ cos (…

Trigonometry: Solving Word ProblemsTrigonometry can be used on a daily basis in the workplace. Since trigonometry means “triangle measure”, any profession that deals with measurement deals with trigonometry as well. Carpenters, construction workers and …