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If-a-x-px-a-y-qy-a-z-rz-and-p-q-r-are-in-AP-then-x-y-z-will-be-in-




Question Number 46924 by 786786AM last updated on 02/Nov/18
If  ((a−x)/(px)) = ((a−y)/(qy)) = ((a−z)/(rz)) and p, q, r  are  in AP, then x, y, z  will be in
Ifaxpx=ayqy=azrzandp,q,rareinAP,thenx,y,zwillbein
Answered by tanmay.chaudhury50@gmail.com last updated on 02/Nov/18
((a−x)/(px))=((a−y)/(qy))=((a−z)/(rz))=(1/k)(say)  px=k(a−x)  p=((k(a−x))/x)  q==((k(a−y))/y)  r=((k(a−z))/z)  2q=p+r  ((2k(a−y))/y)=((k(a−x))/x)+((k(a−z))/z)  ((2(a−y))/y)=((a−x)/x)+((a−z)/z)  ((2a)/y)−2=(a/x)−1+(a/z)−1  (2/y)=(1/x)+(1/z)  so x,y,z  are in HP
axpx=ayqy=azrz=1k(say)px=k(ax)p=k(ax)xq==k(ay)yr=k(az)z2q=p+r2k(ay)y=k(ax)x+k(az)z2(ay)y=axx+azz2ay2=ax1+az12y=1x+1zsox,y,zareinHP

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