Q. If λ1<λ2 are two values of λ such that the angle between the planes P1:→r(3ˆi−5ˆj+ˆk)=7 and P2:→r⋅(λˆi+ˆj−3ˆk)=9 is sin−1(2√65), then the square of the length of perpendicular from the point (38λ1,10λ2,2) to the plane P1 is ______
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