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The acute angle between the curve x = 2y2 and y = 2x2 at `(1/2, 1/2)` is ______.
Concept: undefined >> undefined
`int (cot(logx))/x "d"x` = ______.
Concept: undefined >> undefined
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`int "e"^sintheta [log(sin theta) + "cosec"^2theta]costheta "d"theta` = ______.
Concept: undefined >> undefined
`int (sec^8x)/("cosec" x) "d"x` = ______.
Concept: undefined >> undefined
A random variable X has the following probability distribution:
| X = x | –1 | 0 | 1 | 2 | 3 | 4 |
| P(X = x) | 0.25 | 2k | 0.1 | k | 0.15 | 2k |
Then, the expected value of X is ______.
Concept: undefined >> undefined
`int cosx/sqrt(1 + sinx) "d"x` = ______.
Concept: undefined >> undefined
Inverse of the function y = 5 – 10x is ______.
Concept: undefined >> undefined
Let f(x) = 1 + x, g(x) = x2 + x + 1, then (f + g) (x) at x = 0 is ______.
Concept: undefined >> undefined
Eccentricity of ellipse `x^2/a^2 + y^2/b^2` = 1, if it passes through point (9, 5) and (12, 4) is ______.
Concept: undefined >> undefined
Equation of the ellipse whose axes are along the coordinate axes, vertices are (± 5, 0) and foci at (± 4, 0) is ______.
Concept: undefined >> undefined
The equation of set points P such that PA2 + PB2 = 2K2, where A and B are the points (3, 4, 5) and (–1, 3, –7), respectively is ______.
Concept: undefined >> undefined
`int ("e"^x(1 + x))/(cos^2 ("e"^x x))"d"x` is equals to ______.
Concept: undefined >> undefined
The inverse of f(x) = `2/3 (10^x - 10^-x)/(10^x + 10^-x)` is ______.
Concept: undefined >> undefined
The foot of the perpendicular drawn from the origin to a plane is the point (1, –3, 1). What is the intercept cut on the x-axis by the plane?
Concept: undefined >> undefined
Three vertices of a parallelogram ABCD are A ( 3, –1, 2), B (1, 2, –4) and C (–1, 1, 2). The coordinates of fourth vertex D are ______.
Concept: undefined >> undefined
The equation of the plane containing the line `(x + 1)/(-3) = (y - 3)/2 = (z + 2)/1` and the point (0, 7, –7), is ______.
Concept: undefined >> undefined
The co-ordinates of the foot of perpendicular from the point A (1, 1, 1) on the line joining the points B (1, 4, 6) and C (5, 4, 4) are ______.
Concept: undefined >> undefined
The distance of the point (1, –2, 3) from the plane x – y + z = 5 measured parallel to the line `x/2 = y/3 = (z - 1)/(-6)` is ______.
Concept: undefined >> undefined
A fair coin is tossed 99 times. If X is the number of times head occurs, P(X = r) is maximum when r is ______.
Concept: undefined >> undefined
If g(x) is the inverse function of f(x) and f'(x) = `1/(1 + x^4)`, then g'(x) is ______.
Concept: undefined >> undefined
