Question

40. If f(x) = x^k and f'(1) = 10 the value of k is
a) 10
b) -10
c) 1/10
​

Answer 1

Answer:

a) 10

Step-by-step explanation:

given f (x) = x pow k

so

》f'(x) = k x pow (k - 1)

》given f '(1) = 10

so replace x by 1

》f'(1) = k * (1)pow(k -1) = 10

》k * 1 = 10

》k = 10

》》》》》》》》》》》》》》》》》》》

Answer 2

Answer:

above picture explains it well:)