हिंदी

Find the 22nd term of the progression 7 3/4 +9 1/2 +11 1/4 +... - Mathematics

Advertisements
Advertisements

प्रश्न

Find the 22nd term of the progression `7 3/4 + 9 1/2 + 11 1/4 + ...`

योग
Advertisements

उत्तर

a1 = `7 3/4`

= `31/4`

d = `9 1/2 − 7 3/4`

d = `9 (1 xx 2)/(2 xx 2) - 7 3/4`

d = `9 2/4 - 7 3/4`

d = `38/4 - 31/4`

d = `7/4`

a22 = a1 + 21 × d

= `31/4 + 21 xx (7/4)`

= `(31 + 147)/4`

= `178/4 = 89/2`

= `44 1/2`

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 9: Arithmetic and geometric progression - Exercise 9B [पृष्ठ १८०]

APPEARS IN

नूतन Mathematics [English] Class 10 ICSE
अध्याय 9 Arithmetic and geometric progression
Exercise 9B | Q 2. (c) | पृष्ठ १८०
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×