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question mark

if cos4a sec2b, ½, sin4a cosec2b are in AP, then cos8a sec6b, ½, sin8a cosec6b are in ----------
  1. AP
  2. GP
  3. HP
  4. AGP

Y RAJYALAKSHMI , 11 Years ago
Grade 12th pass
anser 1 Answers
Y RAJYALAKSHMI

Last Activity: 11 Years ago

don’t bother,  I have solved this problem.
Ans: AP
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