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Assertion (A) : A line in space cannot be drawn perpendicular to \(\mathrm{x}, \mathrm{y}\) and \(z\) axes simultaneousl…

Q1

Assertion (A) : A line in space cannot be drawn perpendicular to \(\mathrm{x}, \mathrm{y}\) and \(z\) axes simultaneously.

Reason \((R)\) : For any line making angles, \(\alpha, \beta, \gamma\) with the positive directions of \(x, y\) and \(z\) axes respectively, then \(\cos ^2 \alpha+\cos ^2 \beta+\cos ^2 \gamma=1\).

a

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).

b

Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).

c

Assertion (A) is true, but Reason (R) is false.

d

Assertion (A) is false, but Reason (R) is true.

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