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" (iv) "^(n)P(3):^(n+2)P(3)=5:12...

" (iv) "^(n)P_(3):^(n+2)P_(3)=5:12

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2.^(n)P_(3)=^(n+1)P_(3)

(i) If ""^(n)P_(4): ""^(n)P_(5)=1:2 , find n. (ii) If ""^(n-1)P_(3): ""^(n+1)P_(3)=5:12 , find n.

If .^(n-1)P_(3):^(n+1)P_(3)=5:12, find n

if ^(n)P_(5):^(n)P_(3)=2:1, then n

Find the value of n such that "(i) "^(n)P_(5) =42 xx ""^(n)P_(3), n gt 4 " (ii) "(""^(n)P_(4))/(" "^(n-1)P_(4))=(5)/(3), n gt 4.

Find the value of n such that "(i) "^(n)P_(5) =42 xx ""^(n)P_(3), n gt 4 " (ii) "(""^(n)P_(4))/(" "^(n-1)P_(4))=(5)/(3), n gt 4.

Find the value of n if ""^(n) P_(13) : ""^(n+1) P_(12) =(3)/(4)

Find 'n' if : (i) ""^(2n)P_(3)=100 ""^(n)P_(2) (ii) ""^(n)P_(4)=20xx ""^(n)P_(2)

Find n if "^nP_3 : ^(n+1)P_3 = 5:12