MCQ
Derivative of the function f(x) = 7x-3 is:
- A21x-4
- B-21x-4
- C21x4
- D-21x4
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The line segment joining the foci of the hyperbola x2 - y2 + 1 = 0 is one of the diameters of a circle. The equation of the circle is:
The locus of the point of intersection of lines $\text{x} \cos \text{a} + \text{y} \sin \text{a = a}$ and $\text{x} \sin \text{a - y} \cos \text{a = b}$ (a is a variable):