At t=2π: x=asin3(π/2)=a, y=bcos3(π/2)=0. dxdy=3asin2tcost−3bcos2tsint=−asintbcost. At t=π/2, slope =0. Tangent: y=0.
If X has a Poisson distribution such that P(X = 1) = P(X = 2) then P(X = 3) is :
CUET UG 2023 — Mathematics Applied-Mathematics
2023mcqmedium
If X has a Poisson distribution such that P(X=1)=P(X=2) then P(X=3) is :
Official previous-year question
Held on 30 May 2023 · Verified 13 Jul 2026.
Options
- A
34e−2
- B
31e−3
- C
32e−2
- D
35e−4
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