KCET · Maths · Area Under Curves
Reflexion of the point \( (\alpha, \beta, \gamma) \) in \( X Y \) plane is
- A \( (\alpha, \beta, 0) \)
- B \( (0,0, y) \)
- C \( (-\alpha,-\beta, \gamma) \)
- D \( (\alpha, \beta,-\gamma) \)
Answer & Solution
Correct Answer
(D) \( (\alpha, \beta,-\gamma) \)
Step-by-step Solution
Detailed explanation
Given that, point \( (\alpha, \beta, y) \) has reflection in \( x y \)-plane, that is, only \( z \)-axis coordinate change, \( x \) and \( y \) coordinates remain
same.
So, \( (\alpha, \beta,-\gamma) \)
same.
So, \( (\alpha, \beta,-\gamma) \)
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