The letters r and theta represent polar coordinates. Write each equation using rectangular coordinates (x,y). (1) r = sin(theta) + 1 (2) r = sin(theta) - cos(theta)
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Originally Posted by magentarita The letters r and theta represent polar coordinates. Write each equation using rectangular coordinates (x,y). (1) r = sin(theta) + 1 (2) r = sin(theta) - cos(theta) (2) Substitute and . Multiply both sides by r. Substitute . (1) Substitute . Multiply both sides by r. Substitute .
Originally Posted by mr fantastic (2) Substitute and . Multiply both sides by r. Substitute . (1) Substitute . Multiply both sides by r. Substitute . Thanks for the formulas. Out teacher did not give us those formulas.
Originally Posted by magentarita Thanks for the formulas. Out teacher did not give us those formulas. I'm stunned. What notes did your teacher give you for this topic?
Originally Posted by mr fantastic (2) Substitute and . Multiply both sides by r. Substitute . (1) Substitute . Multiply both sides by r. Substitute . You are wonderful!
Originally Posted by mr fantastic I'm stunned. What notes did your teacher give you for this topic? My teacher's notes are taken right from the textbook. He is lazy. He does not take time to break down the material for students. I am not the only student struggling in this precalculus course.
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