Recently Active Questions

Sum of first n terms of the series 25,22, 19,16,... is 116. Find n? ...

Tn = 2n+5 som of 1st n terms is given by ...

For an AP, Tn = n. Sum of the first n terms is given by ...

a, b, c, d.... are in AP. Given statements below: 1) a+x, b+x, c+x, d+x.... are in AP 2) ax, bx, cx, dx.... are in AP 3) a/x, b/x, c/x, d/x.... are in AP 4) a+ax, b+bx, c+cx, d+dx.... are in AP 5) ax3, bx3, cx3, dx3,..... are ...

If the pth term of an AP is q. qth term is p. What is p-qth term? ...

If Tn, Tn+2, Tn+7 are in AP (given that Tn is the nth term of an AP). Which is true? ...

Sn = n2+2n+1 Which of these is in AP? ...

7times the 7th term equals 11times the 11th term of an AP. Which term is zero? ...

Which of these is not an AP? ...

If the 2nd term times 11 equals 12th term of an AP. What is the common difference? ...

If we know value T1 and that Tn is of the form a+(n-1)d. Which is true? ...

The 10th and the 20th term of an AP are known. Which is true? ...

The coordinates of the midpoint of a triangle are (0,0), (1,1), (-1,1). Find the centroid of the triangle ...

points (5,5), (12,12) is divided by the point (1,1) in the ratio ...

points (5,5), (12,12) is divided by the point (8,8) in the ratio ...

Find the coordinates of the point which divide the points (1,2) & (3,6) in the ratio 4:3 externally. ...

Find the coordinates of the point which divide the points (1,2) & (3,6) in the ratio 4:3 internally. ...

Find the circumcentre of the triangle whose vertices are (1,-1), (-2,2), (1,2) ...

the points (1,-1) (-2,2) (1,2) are vertices of a ...

Find k if distance between the points (k,1) & (0,9) is 17 ...

Find the distance between the points (3,4) & (8,16) ...

x/logx is strictly decreasing in ...

Which is true for x≥0 ...

f(x)=x-sinx is strictly decreasing in ...

Which is true for 0<x<π/2 ...

Which is true for x>0 ...

f(x)=xex is strictly decreasing in ...

f(x)=x3-3x2+3x+9 is strictly decreasing in ...

f(x)=3x4-4x3-6x2-12x+24 is strictly decreasing in ...

f(x)=x3-3x2-8x+12 is strictly decreasing in ...