If 12cr is equal to 495 find the possible values of r
Answers
Answered by
30
If ¹²Cr is equal to 495 then possible values of r are 4 & 8
Step-by-step explanation:
¹²Cₓ = 495
ⁿCₓ = ⁿCₙ₋ₓ
=> ¹²Cₓ = ¹²C₁₂₋ₓ
¹²C₁ = 12
¹²C₂ = 66
¹²C₃ = 220
¹²C₄ = 495
¹²C₄ = 495 => ¹²C₁₂₋₄ = 495
=> ¹²C₈ = 495
possible Value of r = 4 & 8
Related Questions :
If nPr=1680 and nCr=70. find n and r.
https://brainly.in/question/9116366
If nPr=840, nCr=35,find n.
https://brainly.in/question/1700986
Answered by
4
Answer:
the possible values of 12Cr is 4,8
Step-by-step explanation:
Similar questions