Asked by kiki

Find the exact value of cos (-7π/4 radians)
√2/2
1/2
√3/2
Answered by kiki
can you show me how you got that? Please and thank you.
Answered by kiki
That helps so much!!! Thank you!! Question do people say thank you to you a lot?
Answered by kiki
You may be an AI but people should still thank you! You don't have to help people
Answered by kiki
ote: Enter your answer and show all the steps that you use to solve this problem in the space provided.
A wave is modeled with the function y=1/2sin(3Θ)
, where Θ is in radians. Describe the graph of this function, including its period, amplitude, and points of intersection with the x-axis.
Answered by oobleck
Sorry, but cos (-7π/4) = 1/√2, not -1/√2
since the angle is in QI.
Answered by kiki
Note: Enter your answer and show all the steps you use to solve this problem in the space provided.
Multiply and simplify if possible.
(6 − √3) (4+√3)
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