hmahamud1
Answered

Discover a world of knowledge at Westonci.ca, where experts and enthusiasts come together to answer your questions. Discover detailed solutions to your questions from a wide network of experts on our comprehensive Q&A platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

please help me with this question.

Please Hurry​

Please Help Me With This QuestionPlease Hurry class=

Sagot :

Answer:

cos 2θ + cos θ = (2cos θ - 1)(cos θ + 1)

cos 2θ - cos θ = (2cos θ + 1)(cos θ - 1)

Step-by-step explanation:

cos 2θ + cos θ = 2cos²θ - 1 + cos θ      

cos 2θ + cos θ = 2cos²θ + cos θ - 1

                           2cos θ               - 1

                             cos θ              + 1

cos 2θ + cos θ = (2cos θ - 1)(cos θ + 1)

cos 2θ - cos θ = 2cos²θ - 1 - cos θ      

cos 2θ - cos θ = 2cos²θ - cos θ - 1

                           2cos θ             + 1

                             cos θ              - 1

cos 2θ - cos θ = (2cos θ + 1)(cos θ - 1)

We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. We appreciate your time. Please come back anytime for the latest information and answers to your questions. Westonci.ca is committed to providing accurate answers. Come back soon for more trustworthy information.