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[5*^(4)P(r)=6*^(5)P(r-1)],[[" (a) "3," (...

[5*^(4)P_(r)=6*^(5)P_(r-1)],[[" (a) "3," (b) "5]]

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Find r, if 5^(4)P_(r)=6^(5)P_(r-1)

Find 'r' if : (i) ""^(5)P_(r )= ""^(6)P_(r-1) (ii) 5""^(4)P_(r )=6""^(5)P_(r-1) (iii) ""^(5)P_(r )=2""^(6)P_(r-1) (iv) ""^(10)P_(r+1): ""^(11)P_(r )=30 :11 .

Find r, if 5""^(4)P_(r)=6""^(5)P_(r-1)

Find r, if 5""^(4)P_(r)=6""^(5)P_(r-1)

Find r, if 5""^(4)P_(r)=6""^(5)P_(r-1)

Find r, if 5""^(4)P_(r)=6""^(5)P_(r-1)

Fine r if (i) ""^(5) P_(r) =2 ""^(6)P_(r-1) (ii) ""^(5) P_(r) = ""^(6)P_(r-1)

Find r, if 5^4P_r=6^5P_(r-1) .

Iff ""^(5)P_(r)=""^(6)P_(r-1) find r.