Saved Bookmarks
| 1. |
Find the number of terms in the A.P. -2, -7, -12, ..., -77. |
|
Answer» Step-by-step EXPLANATION: a=-2 d=-7-(-2) =-7+2 =-5 tn=? tn=a(d-1) =-2(-5-1) =-2(-6) =-12 |
|