# Recently Active Mathematics Questions

• The remainder when 1992 is divided by 92 is a) 41 b) 49 c)32 d)44 ...
replied2021-09-05 13:18:00
• how to do this q using congruences find the remainder wen 32n+2-8n-9 is divided by 64? i know the procedure by binomial ...
replied2021-03-04 03:54:12
• 1)The triangle formed by the tangent to the curve f(x) = x2 + bx - b at the point (1,1) and the co-ordinate axes lie in the first quadrant. If it's area is 2 then the value of b is: a)-1 b)3 c)-3 d)1 ans c 2)If the normals fr ...
replied2019-10-21 10:29:58
• 64 players play in a knockout tournament. Assuming all players are of equal strength, probabilty that P1 loses to P2 and P3 becomes eventual winner is? ...
0·0· #Mathematics
• Let 2x2+y2-3xy=0 be the equation of a pair of tangents from origin O to a circle of radius 3 with center in the first quadrant. If A is one of the points of contact, Find the length OA ...
replied2018-09-18 17:03:23
• d arithmetic mean of d roots of d equatio n 4Cos3x -4Cos2x -Cos[315pie+x]=1 ...
replied2018-06-30 07:40:10
• let a,b,c,d represent coplanar vectors and sin(A)a + 2sin(2B)b + 3sin(3C)c - 4d = 0 then find the least value of sin(A)^2 +sin(2B)^2 + sin(3C)^2 is.... 1. 7/8 2. 8/7 3. 1 4. 2/3 ...
replied2018-03-29 06:19:37
• The tangent at a point C of a circle and diameter AB when extended intersect at P. If ∠PCA = 110° , find ∠CBA. a) 70° b) 105° c) 110° d) 120° ...
replied2018-03-19 12:05:55
• prove that tan 3x/ tan x never lies in the range3 and 1/3 whenever define! ...
replied2018-02-19 12:58:36
• Domain of f(x)=log |log x| is a) (0,,infty ) b) (1,,infty ) c) (0,,1)cup ,(1,infty ) d) (-infty ,,1) ...
replied2018-01-27 03:13:07
• Q 17. The locus of the vertices of the family of parabolas y=a3x2/3+ a2x- 2a is (1) xy= 105/64 (2) xy= 3/4 (3) xy= 35/16 (4) xy=64/105 ...
replied2017-11-29 23:41:43
• Plz help me in these questions..............(FIITJEE Package) 1. Prob of A wining a game is 0.4 while that of B is 0.6 . What is the probability of A wining a best of 7 games? 2. If Ram and Shyam selects two numbers at ra ...
replied2017-10-15 17:45:54
• Let d be the perpendicular distance from the center of the ellipse x2/a2 + y2/b2 = 1 to the tangent drawn at a point P on the ellipse. If F' and F'' are the two foci of the ellipse , then show that (PF' - PF'')2= 4a2[ 1- (b2/ ...
replied2017-10-13 12:03:59
• If a,c,b are in G.P then the line ax+by+c=0 (A) has a fixed direction (B) always passes through a fixed point (C) forms a triangle whose area is constant (D) none of these ...
replied2017-09-30 20:32:23
• 1) Find the no. of rational roots of- P(x) = 2x98 + 3x97 + 2x96 + 3x95 +....+2x+3 =0 (Hence, find the roots too.) 2) Least degree of a polynomial with integral coeff. of which a= 31/2007 is a zero is- a)223, b)669, c)2007, d) ...
replied2017-08-31 09:53:00
• find the range of y y=1/|sinx| +1/|cosx| ...
replied2017-08-01 09:27:07
• 22. A straight line is drawn from the point(1,0) to the curve x2+y2+6x-10y+1=0, such that the intercept made on it by the curve subtends a right angle at the origin. Find the equations of the line. 23. Determine the range of ...
replied2017-06-26 00:31:02
• *Image* ...
replied2017-02-16 20:58:50
• Let a,b,c be three distinct positive numbers which are in G.P. If logca , logbc , logab are in A.P., then the common difference of the A.P. is.... REPLY SOON..... ...
replied2017-01-21 16:41:20
• Find the sum of all x in [0, 2Ï€] which satisfy the equation 3 cot2 x + 8 cot x + 3 = 0 ...
replied2016-09-25 11:52:04
• Proof that (tan5A+tan3A)/(tan5A-tan3A)=4cos4Acos2A ...
replied2016-08-23 22:52:33
• How many pluses should we put between the digits of 987,654,321 to get a total of 99, and where? ...
1·1· #Mathematics
replied2016-08-10 11:54:51
• 5/1.2.3 +7/3.4.5 +9/5.6.7 .......... is equal to: a) log 8/e b)log e/8 c) log mn d) none of these ...
replied2016-05-21 08:40:16
• There are 50 birds on a tree. A hunter shot at them with a rifle and three birds fell dead.Howmanybirds were left on the tree? ...
0·0· #Mathematics