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The line passing through (– 2, 0) and (1, 3) makes an angle of ______ with X-axis.
Concept: undefined >> undefined
If b2, a2, c2 are in A.P., then `1/(a + b), 1/(b + c), 1/(c + a)` will be in ______
Concept: undefined >> undefined
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The contrapositive of (p v q) `implies` r is ______.
Concept: undefined >> undefined
The gradient of the curve passing through (4, 0) is given by `"dy"/("d"x) - "y"/x + (5x)/((x + 2)(x - 3))` = 0 if the point (5, a) lies on the curve, then the value of a is ______.
Concept: undefined >> undefined
The line which passes through the origin and intersect the two lines `(x - 1)/2 = (y + 3)/4 = (z - 5)/3, (x - 4)/2 = (y + 3)/3 = (z - 14)/4`, is ______.
Concept: undefined >> undefined
A ray of light coming from the point (1, 2) is reflected at a point A on the x-axis and then passes through the point (5, 3). The co-ordinates of the point A is ______.
Concept: undefined >> undefined
`int 1/(x^2 + 1)^2 dx` = ______.
Concept: undefined >> undefined
If `int dx/sqrt(16 - 9x^2)` = A sin–1 (Bx) + C then A + B = ______.
Concept: undefined >> undefined
The contrapositive of the statement : "If the weather is fine then my friends will come and we go for a picnic."
Concept: undefined >> undefined
If planes `vecr.(phati - hatj + 2hatk) + 3` = 0 and `vecr.(2hati - phatj - hatk) - 5` = 0 include angle `π/3` then the value of p is ______.
Concept: undefined >> undefined
If `int 1/((x^2 + 4)(x^2 + 9))dx = A tan^-1 x/2 + B tan^-1(x/3) + C`, then A – B = ______.
Concept: undefined >> undefined
If `intsqrt((x - 5)/(x - 7))dx = Asqrt(x^2 - 12x + 35) + log|x| - 6 + sqrt(x^2 - 12x + 35) + C|`, then A = ______.
Concept: undefined >> undefined
lf Rolle's theorem for f(x) = ex (sin x – cos x) is verified on `[π/4, (5π)/4]`, then the value of c is ______.
Concept: undefined >> undefined
Which of the following equation does not represent a pair of lines?
Concept: undefined >> undefined
The internal angles of a convex polygon are in A.P. The smallest angle is 120° and the common difference is 5°. The number to sides of the polygon is ______.
Concept: undefined >> undefined
The fourth term of an A.P. is three times of the first term and the seventh term exceeds the twice of the third term by one, then the common difference of the progression is ______.
Concept: undefined >> undefined
The three straight lines ax + by = c, bx + cy = a and cx + ay = b are collinear, if ______.
Concept: undefined >> undefined
If the line joining two points A (2, 0) and B (3, 1) is rotated about A in anticlockwise direction through an angle of 15°, then the equation of the line in new position is ______.
Concept: undefined >> undefined
Given two independent events A and B such that P (A) = 0.3, P (B) = 0.6. Find
- P (A and B)
- P(A and not B)
- P(A or B)
- P(neither A nor B)
Concept: undefined >> undefined
The inverse of the function y = `(16^x - 16^-x)/(16^x + 16^-x)` is
Concept: undefined >> undefined
