25. If csc d = 4 and sec 4 > 0, which corectly gives the exact values of cot A and cos A? 4√15 15 B. cot A = (15: cos a = 15 A = 4 A. cotA= -√15: cos A = √15 15 C. cotA=-- D. cot = - -: COS A = √15 15 ; COS A = 4√15 15 √15 4

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