Let {A}(2,5,7) be the image of the point {B}(1,-2,3) with respect to a plane \pi. Let {C} be the point where {AB} meets the plane \pi. Let {D}=(2,1,6). Then the direction cosines of {CD} are

Correct Answer is : 1√6,−1√6,2√6

\frac{1}\sqrt{11}, \frac{3}\sqrt{11}, \frac{-1}\sqrt{11}

\frac{1}\sqrt{6}, \frac{-1}\sqrt{6}, \frac{2}\sqrt{6}

\frac{3}\sqrt{46}, \frac{-1}\sqrt{46}, \frac{6}\sqrt{46}

\frac{1}\sqrt{14}, \frac{2}\sqrt{14}, \frac{3}\sqrt{14}

TS EAMCET 19-July-2022 Shift 2 Solved Paper

Section: Mathematics

Question : 63 of 160

Marks: +1, -0

Let A(2,5,7) be the image of the point B(1,−2,3) with respect to a plane π. Let C be the point where AB meets the plane π. Let D=(2,1,6). Then the direction cosines of CD are

‌
1
√11
,‌
3
√11
,‌
−1
√11
‌
1
√6
,‌
−1
√6
,‌
2
√6
‌
3
√46
,‌
−1
√46
,‌
6
√46
‌
1
√14
,‌
2
√14
,‌
3
√14

Validate

Go to Question:

Prev Question

Next Question