MCQ
Choose the correct answer.
Equation of y-axis is considered as:
Equation of y-axis is considered as:
- Ax = 0, y = 0.
- By = 0, z = 0.
- Cz = 0, x = 0.
- DNone of these.
Solution:
On y-axis, x = 0 and z = 0
Hence, the correct option is (c).
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If $\cos\text{x}=\frac{1}{2}\Big(\text{a}+\frac{1}{\text{a}}\Big),$ and $3\text{x}=\lambda\Big(\text{a}^3+\frac{1}{\text{a}^3}\Big),$ then $\lambda=$
$\frac{1}{4}$
$\frac{1}{2}$
$1$
The distance between the orthocentre and circumcentre of the triangle with vertices (1, 2), (2, 1) and $\Big(\frac{3+\sqrt{3}}{2},\frac{3+\sqrt{3}}{2}\Big)$ is:
If x, 2y and 3z are in A.P. where the distinct numbers x, y and z are in G.P., then the common ratio of the G.P. is:
$3$
$\frac{1}{3}$
$2$
$\frac{1}{2}$