Question

Do as directed
1) 9/2×-7/4​

Answer 1

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$\frac{9}{2} \times \frac{ - 7}{4}$

$= \frac{ - 63}{8}$

Hence, the answer is -63/8.

Answer 2

the fourth term of an Ap is 10. If eleventh term is one more three times of the fourth term find the sum of its 25 terms