chemistry
lowest+freezing+point+of+Kbr+AlNO33+CH3COONa+NaNO2+MgCl2+of+same+molality
geometry
The angles in triangle ABC satisfy 6sin∠A=3√3sin∠B=2√2sin∠C. If sin2∠A=a/b, where a and b are coprime positive integers, what is the value of a+b?
geometry
ABCD is a parallelogram. Let C′ be a point on AC extended such that the length of AC′=1.2AC. Let D′ be on the segment BD such that the length of BD′=0.9BD. The ratio of the area of the quadrilateral ABC′D′ to the area of the parallelogram AB...
SCIENCE
AT WHAT HEIGHT ABOVE THE EARTH'S SURFACE DOES THE ACCELERATION DUE TO GRAVITY FALL TO 1% OF ITS VALUE AT THE EARTH SURFACE
math
The sum of 4 term of an G. P. Is 15/32 and sum of infinite term of same G.P. Is equal to 1/3
Maths
what is the integration of dx/Cos^4(x)
Physics
Find the average velocity of a projetile between the instants it crosses half the maximum heght.It is projected with a speed u at an angle ø(thita) with horizontal.
Science
how many gram of oxygen in persent in 36 gram of water?
physics
In this concept a=force/mass.if mass is doubled the a will be half according to first a.
mathematics
find the maximum value of √3 cosθ-sinθ.???
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