Ερώτηση # 15ada

Ερώτηση # 15ada
Anonim

Απάντηση:

(x -> 0) x / sqrt (1-cos (x)) = sqrt (2) #

Εξήγηση:

(x -> 0) x / sqrt (1-cos (x)) #

(1 + cos (x)) / sqrt (1 + cos (x)) # = lim_ (x-> 0)

(x) = (x-q) (1 + cos (x)) / sqrt (1-cos ^

(x) = / lim (x-> 0) (xsqrt (1 + cos (x)

(x +) x / sin (x) sqrt (1 + cos (x)) #

x = sin (x) * lim_ (x-> 0) sqrt (1 + cos (x)) #

# = 1 * sqrt (2) #

# = sqrt (2) #