मराठी

Evaluate the following: limx→0[15x-5x-3x+1x2] - Mathematics and Statistics

Advertisements
Advertisements

प्रश्न

Evaluate the following: `lim_(x -> 0)[(15^x - 5^x - 3^x +1)/x^2]`

बेरीज

उत्तर

`lim_(x -> 0)[(15^x - 5^x - 3^x +1)/x^2]`

= `lim_(x -> 0) (5^x*3^x - 5^x - 3^x + 1)/x^2`

= `lim_(x -> 0) (5^x (3^x- 1) - 1(3^x - 1))/x^2`

= `lim_(x -> 0) ((3^x - 1) (5^x - 1))/x^2`

= `lim_(x -> 0) ((3^x - 1)/x xx (5^x - 1)/x)`

= `lim_(x -> 0) (3^x - 1)/x xx lim_(x -> 0)(5^x - 1)/x`

= `log 3* log 5   ...[lim_(x -> 0) ("a"^x - 1)/x = log"a"]`

shaalaa.com
Limits of Exponential and Logarithmic Functions
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Limits - EXERCISE 7.4 [पृष्ठ १०५]

APPEARS IN

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×