Question

prove that (21)^n is an odd integer for all
natural number n.​

Answer 1

Step-by-step explanation:

LET THE N BE 2

THEN,

(21)^2=441 IS A ODD NO.

LET THE N BE 3

THEN,

(21)^3=9261 is a odd no.

SO,

(21)^N IS A ODD NO.

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