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Trigonometry
The sensor on a music player is circular. It has a diameter of 8 cm with its centre axis 5 cm from the bottom of the player. If a person moves their finger around the outside of the sensor 1 cm every 1 second, what adjustments could be made to the cosine function to model the movement of the finger?
Trigonometry
cos^3a.cos 3a+sin^3a.sin3a=cos^3 2a
Trigonometry
If tan^2a=1+2tan^2b,then prove that cos 2b=1+2cos2a
Trigonometry
If tana=P/Q,prove that Q cos2a+P cos2a=Q
Trigonometry
cos^3a sin3a+sin^3a cos3a=3/4sin4a
Trigonometry
Sin cube a+cos cube a/sina+cosa=1-1/2sin2a
Trigonometry
Find all the complex roots. Leave your answers in polar form with the argument in degrees.
14) The complex fourth roots of -16
14) The complex fourth roots of -16
Trigonometry
An audio speaker that weighs 50 pounds hangs from the ceiling of a restaurant from two cables(45 degrees left and 35 degrees right). To two decimal places, what is the tension in the two cables?
Trigonometry
Find the work done by a force of 2 pounds acting in the direction of 35° to the horizontal in moving an object 8 feet from (0, 0) to (8, 0).
Trigonometry
Calculate llF1ll and llF2ll when delta=150 degrees and theta=30 degrees.
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#339914 on Dec 2023
#339914 on Dec 2023