Rabin
Popular questions and responses by Rabin
Math
if vectors a+2b and 5a4b are perpendicular to each other and a and b are unit vectors. Find the angle between a and b.
asked on February 21, 2016 
maths
solve: tanx+tan2x+√3tanx tan2x=√3 (0
asked on January 2, 2017 
Science
if a strong odour is smelt continuously for some time the sensation of smell of that substance weakness why?
asked on January 31, 2016 
Math
If 1/sinA+1/cosA =1/sinB+1/cosB, prove that: cot(A/2+B/2) = TanA. TanB
asked on March 27, 2016 
Math Vector
ABCDEF is a regular hexagon. Show that vecotr AB+AC+AD+EA+FA=4AB
asked on March 12, 2016 
Maths Vector
ABCDEF is a regular hexagon. Show that vecotr AB+AD+FA+EA=3AB
asked on March 12, 2016 
Maths Vector
ABCDEF is a regular hexagon. If AB=a,BC=b,express vector,AD AND AE in terms of a and b.
asked on March 12, 2016 
Math
P and Q are two points on the line xy+1=0 and are at a distant of 5 units from the origin. Find the area of triangle POQ.
asked on January 25, 2016 
Math
In ∆ABC,D and E divides AB and AC in the ratio of 1:2 respectively. Prove that Vector DE=1/3BC.
asked on February 25, 2016 
Opt math
Prove :Tan20+4sin20=square root 3
asked on August 2, 2016 
Math Vector
ABCDEF is a regular hexagon. Show that vecotr AB+AD+FA+EA=3AB
asked on March 12, 2016 
Maths
Prove: 1+(TanA/SinB)^2/1+(TanA/SinC)^2 = 1+(SinA/TanB)^2/1+(SinA/TanC)^2
asked on March 19, 2016 
Math Vector
In ∆ABC, OA=3i5j, OB=7i+4j and the position vector of centroid G is 2i+j. Find OC.
asked on February 25, 2016 
Opt math URGENT
prove that : cos^3(θ)sin^2(θ)=1/16[2cos(θ)3cos(θ)5cos(θ)]
asked on August 9, 2016 
maths
Prove: sin^212+sin^221+sin^239+sin^248=1+sin^29+sin^218
asked on March 12, 2018 
maths
solve for x: cosecX+secX=2Square root 2
asked on December 29, 2016 
Maths algebra
Solve: 66x^3+5280x^256847=0
asked on August 6, 2017 
Maths
A shopkeeper has false balance. It weighs 10% profit when buying goods and weighs 10% loss when selling goods. Find the profit and loss percent by weighing?
asked on August 27, 2016 
Maths
Solve for: 4^x+4^(1/x)=18
asked on February 8, 2018 
math
if A+B+C=π prove that sin(B+2C)+sin(C+2A)+sin(A+2B)=4sin(BC)/2 sin(CA)/2 sin(AB)/2
asked on January 4, 2017 
Maths
Some amount of money is distributed to a some students equally. If the number of student is decreased by 10 then they will get 20 rupees more. If student is increased by 10 then they will get 4 rupees less. Find the amount and number of student?
asked on July 8, 2016 
Math
If vector OA=4i+2j ,OB=6i8j and OC=2i+5j then find the value of
asked on February 24, 2016 
Math
Solve: (1√3tanθ)+1+√3 = √3sec^2θ Where (0≤θ≤360)
asked on February 21, 2016 
Math
If m th tern of the geometric sequence is 1/n and n th term is 1/m then show that sum of first term s(mn)=1/2 (mn+1).
asked on February 26, 2016 
Math
Solve:(a+x)^2/3+(ax)^2/3=3(a^2x^2)^1/3
asked on January 26, 2016 
science
why ac current has variable frequency and voltage? I din't understand about hertz. please make me clear about it?
asked on January 18, 2017 
Math urgent
X,Y and Z can do a piece of work in 15 days. If X takes twice as much as Y and Z together and Y takes thrice as much as X and Z together, how long days will each take to finish a work.
asked on September 5, 2016 
Maths
Prove that:sin(x+2y)+sin(y+2z)+sin(z+2x)=4sin(xy)/2sin(yz)/2sin(zx)2
asked on August 15, 2016 
Math
In what ratio the line segment AB divided by P where, OA= 4i+2j, OB=18i+4j and OP=8i+4j.
asked on February 22, 2016 
Math
In ∆ABC, AD median of BC where position vectors of A and D are 3i2j and 3i4j respectively. Find the position vector of centroid G of the ∆ABC.
asked on February 22, 2016 
physics
A body is thrown with initial velocity 50ms1 at the angle 60• With the horizontal. Calculate the horizontal range ,also calculate what another angle achieve the same?
asked on January 23, 2012 
Math
If m th term of the geometric series is 1/n and n th term is 1/m then show that sum of first (mn) th term of this series is 1/2 (mn+1).
asked on February 26, 2016 
Math
If vector OA=4i+2j ,OB=6i8j and OC=2i+5j then find the value of
asked on February 24, 2016 
Maths
X,Y and Z can do a piece of work in 15 days. If X takes twice as much as Y and Z together and Y takes thrice as much as X and Z together, how long days will each take to finish a work.
asked on September 5, 2016 
Science
What do you mean by resultant vector?
asked on August 19, 2016 
Science
which part of the tongue is stimulated by more temperature? Explain.
asked on January 31, 2016 
Maths urgent
4^x+4^(1/x)=18
asked on February 8, 2018

Math urgent
Find two separate equation of x^2+2xy+y^22x2y15=0
posted on September 5, 2016 
Maths
How to solve two variable in one time please.. Help me
posted on July 9, 2016 
Maths Vector
ABCDEF is a regular hexagon. Show that vecotr AB+AD+FA+EA=3AB
posted on March 12, 2016 
Math
If m th term of the geometric series is 1/n and n th term is 1/m then show that sum of first (mn) th term of this series is 1/2 (mn+1).
posted on February 27, 2016