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Let are any two points in the space. Suppose that are the projections of on the axis, respectively, then
detailed solution
Correct option is A
The projection of PQ on x- axis is x2−x1Hence, the projection of PQon x-axis is d1=3The projection of PQ on yz-plane is y2−y12+z2−z12Hence, the projection of PQ on xy- plane is 0−22+−2−02=8=d2Therefore, d12−d22=9−8=1Talk to our academic expert!
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are vertices of If a,b,c are HG, GS, SH then their increasing order is (H,G, S are orthocentre, centroid and circumcentre)
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