solve trigonometric equation for θ with 0 ≤ θ < 2 π

label Algebra
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

tan^2(θ)-sec^2(θ)=cos(-θ) 

Jun 4th, 2015

Thank you for the opportunity to help you with your question!

tan^2(θ)-sec^2(θ)=cos(-θ) 

-1=cos(θ)

tan^2(θ)-1-tan^2(θ)=cos(-θ)

-1=cos(-θ)

-1=cos(θ)

reference for rules I used:



http://www.sosmath.com/trig/Trig5/trig5/trig5.html


Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 4th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
Jun 4th, 2015
...
Jun 4th, 2015
Oct 18th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer