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Q. 18. If cote = - prove that:yupower as soon as posiblePleasesece-cosecesec 0 + cosecomwer as soon1e - cosece

Answer»

V secx- cosecx/ V secx + cosecx=V(3/4)-(V7/3) / 3/4+ V7/3=(V9-4V7/12× 12/4V7+9=1/V7



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