Topics
Trigonometry
topic badge
India
Class XI

Exact values in right-angled triangles

Lesson
Practice

Interactive practice questions

Write down the exact value of $\sin60^\circ$sin60°.

Easy
< 1min

Write down the exact value of $\cos60^\circ$cos60°.

Easy
< 1min

Write down the exact value of $\tan30^\circ$tan30°.

Easy
< 1min

Evaluate $\sin45^\circ+\cos60^\circ$sin45°+cos60°, leaving your answer in exact form.

Easy
1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account
Book a Demo
Sign up for free

Outcomes

11.SF.TF.2

Identities related to sin 2x, cos 2x, tan 2x, sin 3x, cos 3x and tan 3x. General solution of trigonometric equations of the type sin θ = sin α, cos θ = cos α and tan θ = tan α. Proofs and simple applications of sine and cosine formulae.

What is Mathspace

About Mathspace