chemistry
What will be value of molarity and strength %w/v respectively 30V H2O2 solution
math 12
the answer is 60 degrees
Advanced Math
4cos(theta)+3sin(theta)=(10/r)
Advanced Math
The general equation of such cosine function is:y=acos(x-phasedifference), y=displacement a=amplitude x=angular displacement =(angular velocity)*time =(2pi/time period)*time Therefore, the equation can be written as: y=2cos[x-(pi/4)]..........(a) or,y=2cos[(2pi/pi)*t-(pi/4)] o...
mathhhhhhhhhhh,
x^6+3x^3+2=0 It can also be written as: (x^3)^2+3(x^3)+2=0...........(1) Let a=(x^3), then we may rewrite equation (1) as: a^2+3a+2=0 or,a^2+a+2a+2=0 or,a(a+1)+2(a+1)=0 or,(a+1)(a+2)=0 either,a=-1 or,a=-2 that is (x^3)=-1 or (x^3)=-2 Therefore, x=-1 or x=cube root of -2 this i...
Math
Thanks that was really helpful. But the solution to the limit problem is still not clear to me.
Math
a)in how many different ways can 8 exam papers be arranged in a line so that the best and worst papers are not together? b)in how many ways can 9 balls be divided equally among 3 students? c)There are 10 true-false questions. By how many ways can they be answered? d)lim(x tend...
math
=-12y+40+4y+10 =-8y+50
physics
If R1 and R2 be the two resistances connected in (a)series, then equivalent resistance=R1+R2 (b)parallel, then equivalent resistance=(R1*R2)/(R1+R2)
trigonometry
if sin2x=3sin2y, prove that: 2tan(x-y)=tan(x+y) ( here, in sin2x, 2x is an angle., like there's a formula:sin2x=2sinxcosx and sin2y=2sinycosy; ....)
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