Establish each identity. $$ \cot (2 \theta)=\frac{1}{2}(\cot \theta-\tan \theta) $$
Added by Remedios R.
Step 1
Step 1: Start with the left-hand side of the given identity: $$ \cot (2 \theta) = \frac{1 - \tan^2 \theta}{2 \tan \theta} $$ Show more…
Show all steps
Close
Your feedback will help us improve your experience
Steven Clarke and 78 other Precalculus educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Verify the identity. $\tan \theta+\cot \theta=2 \csc 2 \theta$
Vysakh M.
Establish each identity. $$1+\cot ^{2}(-\theta)=\csc ^{2} \theta$$
Verify each identity. $$ \tan \left(\theta-\frac{\pi}{2}\right)=-\cot \theta $$
Trigonometric Identities And Equations
Angle Identities
Recommended Textbooks
Precalculus with Limits
Precalculus
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD