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Polar Intersections

Polar Intersections. 5025D. I. Trig Identities. II. Solving Trig Equations. Review: Solving Trig Equations. 1. Never divide!!!!!. Double twice the angles Triple three times the angles Half half as many angles.

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Polar Intersections

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  1. Polar Intersections 5025D

  2. I. Trig Identities

  3. II. Solving Trig Equations

  4. Review: Solving Trig Equations

  5. 1

  6. Never divide!!!!!

  7. Double twice the angles Triple three times the angles Half half as many angles

  8. *Note: better to ask where are sin and cos equal. We know cosθ≠0 when cos θ=sinθ

  9. Check the Pole: set r=0 yes or no If both yes the Pole is an intersection point and find θ Set the equation EQUAL to each other and solve for θ. (to find secondary places of equality Compare your answers against the graphs Method

  10. Pole: EXAMPLES:

  11. Pole: yes yes

  12. yes Pole: yes

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