Apakah punca kuasa dua 28?

Apakah punca kuasa dua 28?
Anonim

Jawapan:

sqrt28 = sqrt (4 * 7) = 2sqrt7

Penjelasan:

sqrt28 = sqrt (4 * 7) = 2sqrt7

Jawapan:

sqrt (28) = 2sqrt (7)

Penjelasan:

28 = 7. 2^2

sqrt (28) = sqrt (7 (2 ^ 2)) = 2sqrt (7)