३] एका अंकगणिती श्रेढीचे पहिले पद 12 व सामान्य फरक 4 आहे आणि tn=96 असेल, तर n चीकिंमत काढा.
Answers
Answered by
3
Answer:
n=2
Step-by-step explanation:
Given a=12,r=4,tn=96
tn=ar^n-1
96=12x4^n-1
8=4^n-1
2^3 =2^2n-1
3=2n-1
2n=4
n=2
Make my answer as brainlist please
Answered by
0
a=12. ,d=4. ,tn=96 , n=?
tn=a+(n-1) × d
96=12+(n-1) × 4
.......a
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