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- Question 1, Exercise 4.2
- a_2=7$, $a_3=10$, $a_4=13$. GOOD =====Question 1(ii)===== Find the first four terms of the arithmetic... 2=12$, $a_3=17$, $a_4=22$. GOOD =====Question 1(iii)===== Find the first four terms of each arithmet
- Question 2, Exercise 4.2
- e sequence are $17$, $21$, $25$. =====Question 2(ii)===== Find the next three terms of each arithmeti... sequence are $20$, $23$, $26$. =====Question 2(iii)===== Find the next three terms of each arithmet
- Question 9 and 10, Exercise 4.2
- gn*} Also \begin{align*} d&=\frac{1}{c}-b \cdots (ii) \end{align*} Comparing (i) and (ii) we have\\ \begin{align*} b-\frac{1}{a}&=\frac{1}{c}-b\\ b+b&=\fr
- Question 13, Exercise 4.2
- align*} Hence A.M. = $12$. GOOD =====Question 13(ii)===== Find A.M. between $3+3 \sqrt{2}$ and $7-3 \... {align*} Hence A.M. = $5$. GOOD =====Question 13(iii)===== Find A.M. between $7 \sqrt{5}$ and $\sqrt{
- Question 14, Exercise 4.5
- nce $S_{\infty} =\dfrac{4}{9}$. =====Question 14(ii)===== Find fractional notation for the infinite g... ign*} Hence $S_{\infty}= 1 $. =====Question 14(iii)===== Find fractional notation for the infinite