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Solve by using cramer’s rule;
x = 5y -40
y = 110–10x​

By Sophia

Solve by using cramer’s rule;
x = 5y -40
y = 110–10x​

About the author
Sophia

A circle touches the three sides of ΔPQR as shown in the figure. If AP = 3 BR = 4 CQ = 5 then perimeter of ΔPQR is _______.​

Check whether ✓2704 is a rational number or not , if yes tell the reason​

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