EnglishRajasthan TGT 2011 UPPCS (Pre) 1994
Q201.The equation of line passing through the point of intersection of lines x y 1 a b + = + = and x y 1 b a + = and through the origin is
Correct answer: x y 0 − =
EnglishJharkhand TGT 2017
Q202.The centroid of the triangle ABC is at the point (1, 1, 1). If the co-ordinates of A and B are (3,– 5, 7) and (–1, 7,–6) respectively, then the co- ordinates of the point C is
Correct answer: (1, 1, 2)
Q203.The perpendicular distance of the origin from the line 3x+4y+1= 0 is–
Correct answer: 1/5
Q204.The normal to a given curve is parallel to x– axis
Correct answer: dx 0 dy
Q205.If m is the slope of the tangent to the curve ey = 1 + x2 then,
Correct answer: |m| ≤ 1
Q206.Both the roots of the quadratic equation x2 +px+q=0 are 1 and 2 then what will be roots of the equation 2 qx – px +1 = 0.
Correct answer: 1, 1 2 − −
Q207.The center of any circle inscribed in a triangle is determined by-
Correct answer: Through the angle bisectors
Q208.The solutions of the equation 3x–4y=5 and 12x– 16y=20 will be
Correct answer: More than two common solution
Q209.If S is a pole, S S' is the initial line, S S' = 2 ae and a point P moves in such a way that SP + S' P = 2a, where 0 < e < 1, then the locus of P is:
Correct answer: () 2 a 1 e 1 ecos r − = − θ
EnglishUP PCS (Pre) 1999 / PGT 2013
Q210.For 0≤x≤4, y = x - 2 represents:
Correct answer: a pair of straight line segments
Q211.The locus of the point (x, y) equidistant from the points (–1, 1) and (3, –2) is:
Correct answer: 8x–6y–11 = 0
Q212.The foot of the perpendicular from the point (2, 3) on the line x + y – 11 = 0 is:
Correct answer: (5, 6)
Q213.The co-ordinates of the centre of the conic x2 –xy–y2 –6x+3y+5=0 are:
Correct answer: (3, 0)
Q214.The second degree equation ax2 +2hxy+by2 +2gx +2fy+c = 0 represents a pair of parallel lines if:
Correct answer: h2 =ab, af2 =bg2
Q215.The equation of the tangent line to the parabola 2 y x which is perpendicular to the line 2x 3y 4 is–
Correct answer: 6y 9x 1
Q216.A line passes through (2,2) and is perpendicular to the line 3x+y = 3 then the y-intercept is–
Correct answer: 4/3
Q217.Area of the triangle formed by lines y x 0, y x 0, x c 0 is given by–
Correct answer: 2/c
Q218.If the equation a b + = 1 x -a x -b has two roots equal in magnitude and opposite in sign, then the value of (a+b) is:
Correct answer: 0
Q219.Which of the following points lie outside the ellipse 2 2 x y 1 a b + = + =:
Correct answer: (a,b)
Q220.The conic, whose focus is the pole and directrix is the line θ= 900 is
Correct answer: a parabola