Check out an overview of the CBSE Superintendent Syllabus below. Having the syllabus PDF will make things much easier for you. You can keep it on your study table to track the topics you've covered.

Angles of elevation and depression are angles that are given from above or below a horizontal perspective. For example the angle that is made when you look up at something is an angle of elevation.

Trigonometry is often aligned with right-angled triangles only. However, an understanding of trigonometry can also be extended to non-right angle triangles to find unknown sides or angles. The Sine ...

λa + λb + λc + λd + ... = γ as [λ, λ, λ, λ, ..., γ] ...