हिंदी

Given: Log3 M = X and Log3 N = Y. If 2 Log3 A = 5x - 3y; Find a in Terms of M and N. - Mathematics

Advertisements
Advertisements

प्रश्न

Given: log3 m = x and log3 n = y.
If 2 log3 A = 5x - 3y; find A in terms of m and n.

योग

उत्तर

Given that log3m = x and log3n = y
⇒ 3x = m and 3y = n 

Consider the given expression :
2log3A = 5x - 3y
⇒ 2log3A = 5 log3m - 3log3n

⇒ log3A2 = log3m5 - log3n3

⇒ log3A2 = `log_3( m^5/ n^3 )`

⇒ A2 = `( m^5/ n^3 )`

⇒ A = `sqrt(( m^5/n^3 ))`

shaalaa.com
Expansion of Expressions with the Help of Laws of Logarithm
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 8: Logarithms - Exercise 8 (C) [पृष्ठ १०८]

APPEARS IN

सेलिना Concise Mathematics [English] Class 9 ICSE
अध्याय 8 Logarithms
Exercise 8 (C) | Q 5.3 | पृष्ठ १०८
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×