Hva skjer her?

Hva skjer her?
Anonim

Svar:

# | synd (x) | <= 1, "og" arctan (x) / x> = 0 #

Forklaring:

# "Som" | synd (x) | <= 1 "og" arctan (x) / x> = 0, "vi har" #

# | (sin (1 / sqrt (x)) arctan (x)) / (x sqrt (ln (1 + x))) | <= | arctan (x) / (x sqrt (ln (1 + x))) | #

# = arctan (x) / (x sqrt (ln (1 + x))) "(både arctan (x) / x og" sqrt (…)> = 0 ")"

# = arctan (x) / (sqrt (x) sqrt (x ^ -1) x sqrt (ln (1 + x))) # #

# = arctan (x) / (sqrt (x) x sqrt (x ^ -1 ln (1 + x)))