Mathematics Tes...

The angle between the tangents from any point on the circle x²+y²=r² to the circle x²+y²=r²sin²α is

lf t is parameter, A=( a sec t , b tan t ) and B =( − a tan t , b sec t ) , O = ( 0 , 0 ) then the locus of the centroid of ΔOAB is

The locus of a point which is collinear with the points (3,4) and (−4,3) is

The greatest distance of the point (10,7) from the circle x²+y²−4x−2y−20=0 is:

The circles x²+y²+4x−2y+4=0 and x²+y²−2x−4y−20=0

lf a line passes through the point P(1,−2) and cuts the circle x²+y²−x−y=0 at A and B, then the maximum value of PA+PB is

The edges of a triangular board are 6cm,8cm and 10cm. The cost of painting it at the rate of 9 paise per cm² is

The equation of the circle which touches x-axis at (0,0) and touches the line 3x+4y−5=0 is

lf the point (k+1,k) lies inside the region bounded by the curve x=√25−y2 and y-axis, then k belongs to the interval

The length of the normal from pole on the line r cos (θ−π/3)=5 is