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