In trigonometry,
sin(x)cos(y)=(sin(x+y)+sin(x-y))/2.
sin(x+x)+sin(x-x)
A formula unit is an empirical formula.
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Yes, it is possible for an empirical formula to be the same as the molecular formula. For example, Lactic acid's molecular formula is C3H6O3, which would make its empirical formula CH2O.
The products of the cellular respiration formula are the reactants of the photosynthesis formula, and the reactants of the cellular respiration formula are the products of the photosynthesis formula. Basically, they are opposite processes.
CO is both an empirical formula and a molecular formula.
sin(2x) = 2sinxcosx
-4
Start by squaring both sides of the equation to get, (sinx + cosx)2 = 0.25 Simplify the left side to get sin2x + 2sinxcosx + cos2x = 0.25 Using the Pythagorean identity gets 2sinxcosx + 1 = 0.25 2sinxcosx = -0.75 Using the double angle formula gets Sin(2x) = -0.75 Take the arcsin to get 2x = sin-1(-0.75) x = sin-1(-0.75)/2 Now, a scientific calculator can be used to find the solutions.
d/dx (sin x)^2=2sinxcosx
1
2sinxcosx-cosx=0 Factored : cosx(2sinx-1)=0 2 solutions: cosx=0 or sinx=.5 For cosx=0, x=90 or 270 degrees For sinx=.5, x=30 degrees x = {30, 90, 270}
cosx^2 differentiates too 2(cosx)^1 x the differential of cos which is -sin so u get -2sinxcosx use the chain rule!
Integrate 2sin(x)cos(x)dxLet u = cos(x) and du = -sin(x)dx and pull out the -2:-2[Integral(u*du)]Integrate with respect to u:-2(u2)/2 + CSimplify:-u2 + CReplace u with cos(x):-cos2(x) + C
the answer is : A MOLECULAR FORMULA
What Is The Formula What Is The Formula What Is The Formula For Calcium Phosphate ?
Formula: HClO
If there is a formula in the active cell, then the formula will be displayed in the formula bar and the result of the formula will appear in the cell.