 ## The equation of the pair of straight lines parallel to the y – axis and which are tangents to the ci….

The equation of the pair of straight lines parallel to the y – axis and which are tangents to the circle x2 + y2 – 6x – 4y – 12 = 0 is :

## The area of the curvilinear triangle bounded by the y-axis & the curve y = tan x & y = ….

The area of the curvilinear triangle bounded by the y-axis & the curve y = tan x & y = 2 3 cos  x  is

## If 5a + 4b + 20c = t, then the value of t for which the line ax + by + c – 1 = 0 always passes throu….

If 5a + 4b + 20c = t, then the value of t for which the line ax + by + c – 1 = 0 always passes through a fixed point is

## If (1 + x + x2 )25 = a0 + a1 x + a2 x2 + ………….a50 x50 then a0 + a2 + a4 + ………+ a50  i….

If (1 + x + x2 )25 = a0 + a1 x + a2 x2 + ………….a50 x50 then a0 + a2 + a4 + ………+ a50  is —

## If f(x) is a polynomial satisfying  and , then  is :….

If f(x) is a polynomial satisfying  and , then  is :

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## If , find 2A – 3B…..

If , find 2A – 3B.

## The focal chord to y 2 = 16x  is tangent to , then the possible values of the slope of this c….

The focal chord to y 2 = 16x  is tangent to , then the possible values of the slope of this chord, are

## In triangle ABC, CD is the bisector of the angle C, If cos C 2 = 1 3  and  CD = 6 ,….

In triangle ABC, CD is the bisector of the angle C, If cos C 2 = 1 3  and  CD = 6 , then the value of 1 a + 1 b  . (Where , and are the lengths of the sides opposite to Angles A, B & C...

## If n is a positive integer and Ck = nCk, then Σ k = 1 n  k 3   C⁡ k C⁡ ….

If n is a positive integer and Ck = nCk, then Σ k = 1 n  k 3   C⁡ k C⁡ k – 1 2   equals

## There are m bags which are numbered by m consecutive positive integers starting with the number k. E….

There are m bags which are numbered by m consecutive positive integers starting with the number k. Each bag contains as many different flowers as the number levelled against the bag. A boy has to pick up k flowers from any one of the bags. In how many different...

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