The sum of the first two terms of a decreasing geometric series is 5 ÷ 4 and the sum up to infinity is 9 ÷ 4, find the commonratio and the first term.
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Step-by-step explanation:
Standard equation of a circle is <br>
<br> Let,
lies on this circle, then<br>
<br>
<br>
<br> Let
are the roots of equation (1), then,<br>
<br> So, product of roots is
.<br> As,
lie on this circle.<br>
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