# How to use *N-n* in a sentence

If this be applied to the right-hand side of the identity m m m 2 m2 tan-=- -

**n n**-3n-5n" it follows that the tangent of every arc commensurable with the radius is irrational, so that, as a particular case, an arc of 45 having its tangent rational, must be incommensurable with the radius; that is to say, 3r/4 is an incommensurable number."This bond distance is longer for the s-cis isomer, which also shows a shortening of the central N-N bond (Figure 1 ).

Quantitative chemistry had been all but neglected before the time of Lavoisier, for although a few chemists such as Tachenius, Bergman and others had realized the advantages which would accrue from a knowledge of the composition of

**N N**N bodies by weight, and had laid down the lines upon which such determinations should proceed, the experimental difficulties in making accurate observations were enormous, and little progress could be made until the procedure was more accurately determined.It may be written in the form

**n n**-1 2 ax 1 +bx1 x2 +cx 1 x 2 + ...; or in the form**n n**n=1**n n**-2 2 +(1)bx x2+ ?If we denote n(n -i) ..

AdvertisementDenote the product n(n +I) ..

Raoult (Comptes Rendus, 1886-87) employed other solvents besides water, and showed that the relative lowering for different solvents and different dissolved substances was the same in many cases for solutions in which the ratio of the number of gramme-molecules n of the dissolved substance to the number of molecules N of the solvent was the same, or that it varied generally in proportion to the ratio n/N.