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KEAM 2023 Math Solved Paper

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Question : 114 of 120
 
Marks: +1, -0
If θ1,θ2 and θ3 are the angles made by a line with the positive directions of the x,y,z axes, then the value of cos‌2‌θ1+cos‌2‌θ2+cos‌2‌θ3 is
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