Answered

Discover new perspectives and gain insights with IDNLearn.com. Get thorough and trustworthy answers to your queries from our extensive network of knowledgeable professionals.

Verifying trig identity :cos to the second power theta minus sin to the second power theta  equals 1 minus 2 sin to the second power theta

Sagot :

[tex]\vdots\ sin^2\theta+cos^2\theta=1\to cos^2\theta=1-sin^2\theta\ \vdots\\\\\\cos^2\theta-sin^2\theta=1-2sin^2\theta\\\\L=\underbrace{1-sin^2\theta}_{cos^2\theta}-sin^2\theta=1-2sin^2\theta=R\\\\L=R[/tex]
Thank you for contributing to our discussion. Don't forget to check back for new answers. Keep asking, answering, and sharing useful information. IDNLearn.com has the solutions to your questions. Thanks for stopping by, and see you next time for more reliable information.