Question

[20] Simplify (R cis e)'. A. Rp cis po B. Rºcis pe C. Rp cis OP D. RP cis OP E. none of these [21] Which polar point is not equivalent to the polar point (20,- 700°)? A. (20, 20) B. (-20, 2009) c. (-20, -160°) D. (20, – 340°) E. not one of these is not equivalent, meaning they are all equivalent [22] Which polar point is not equivalent to the polar point (-3, -37) ? A. (3x, 0) B. (37, 37) C. (-3r. - *) D. (-37, ) E. not one of these is not equivalent, meaning they are all equivalent 57 [23] Which polar point is not equivalent to the polar point -6, 12 ? A. 197 12 B. c. 12 197 12 D. . (6.17 177 12 E. not one of these is not equivalent, meaning they are all equivalent

Answer 1

120 (Rcisoj" RP (cisoje (caso tisina) =RP [cos po tisin po] [By be Moiver's = RP | pt cis (po). 21.) The given polar print is, (20~70°) (20,-70°) (202x360º – 4.00 J= (20,200) (20,-70= (20 368-7600 )=(20; -3400) so (20, 20°) (20, -7000) (20,-340°) are some point. Now, (0-20) २० eo 200° SO same point, २००० Now (-20, 2000) is also the -20-1600) = (20) 360°- 1660 )=(-20, so, it is same point dir correct option is €. not are of these is not equivalent. meaning they are all einvalart.

The given perint is, (-37, - 34 (-30, -30 -30 0 (-7, 343 Fi -حل (373) so, the carent option is (3*, 3x) (3A, 31 ) is hat equivalent to (-327-32) [23) (-6, ) is the given point: I Now consider the point (6, 1942) = 16, 2014) (6 correct option is O. (to - 199 2 ) is not equivalent to (6 SA 12 so The

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