Math, asked by thanku03, 1 year ago

plss solve this question

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Answered by Anonymous
1

Answer:

r=2

Step-by-step explanation:

4*⁶Pr=⁶Pr+1

or, 4*6!/(6-r)!=6!/(6-r-1)

4/(6-r)! =1/(6-r-1)

(6-r)!=4*(6-r-1)!

(6-r)(6-r-1)! = 4*(6-r-1)!

6-r=4

r=6-4=2

r=2


Anonymous: wlkm
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