Let R_1 and R_2 be relations on the set \{1,2, . . . . . . ., 50\} such that {\R}_1=\{( {\p}, {\p}^{ {\n}}): {\p}. is a prime and {\n} \geq 0 is an integer \} and {\R}_2=\{( {\p}, {\p}^n): {\p}. is a prime and {\n}=0 or 1\} Then, the number of elements in {\R}_1- {\R}_2 is___ [28-Jun-2022-Shift-1]

JEE Main 28 June 2022 Shift 1 Solved Paper

Section: Mathematics

Question : 21 of 90

Marks: +1, -0

Let R1 and R2 be relations on the set {1,2,.......,50} such that
R1={(p,pn):p. is a prime and n≥0 is an integer } and
R2={(p,pn):p. is a prime and n=0 or 1}
Then, the number of elements in R1−R2 is___

[28-Jun-2022-Shift-1]

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