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Vijay Singh chauhan Asked a Question
April 7, 2021 9:35 ampts 30 pts
30. 1 point If the plane 2x-2y +z= 9 touches the x* + y +z' =r', the value of r is (b) 2 (a) 1 (d)9 (C) 3 O a O b O Od 3.* 1 point The sum of the squares of the direction cosines of any line is always (b) 5 (d) )2
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  • Sonu saini thankyou
    30(c) 3(d)
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  • Sonu saini Best Answer
    see this attachment
    • cropped1313474815533088048.jpg
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  • Piyush thankyou
    Option D is correct for second question.
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