If 13 cosP= 5 P¢ã[0,270]and

  1. In a triangle PQR. Q=8cm , R=6cm . Cosp=1/12.calculatethe value of p
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    2. benjieo asked by benjieo
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  2. If X,y,a and b are real numbers and if x+yi = a/b+cosp+isinp , show that (b^2-1)(x^2+y^2)+a^2 =2abx
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    2. Joel asked by Joel
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  3. If 13 cosP= 5 P¢ã[0,270]and 15 tan Q-8=0 for sinQ<0,evaluate: 17tanP.sinQ
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    2. Raymond Mashilo asked by Raymond Mashilo
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