The 21st term of the AP whose first two terms are –3 and 4 is
A. 17
B. 137
C. 143
D. –143
Answer:B
The 21st term of the AP whose first two terms are –3 and 4 is
A. 17 B. 137 C. 143 D. –143
Explanation: First two terms are –3 and 4