View All. Biologic drugs, which have been marketed for certain types of inflammatory arthritis since 1998, are administered either by infusion or self-injection. Side effects, which can occur with these drugs, are referred to as infusion reactions or injection site reactions.
Reciprocal identities[edit] The cosecant ( csc {\displaystyle \csc } ), secant ( sec {\displaystyle \sec } ) and cotangent ( cot {\displaystyle \cot } ) functions are 'convenience' functions, just the reciprocals of (that is 1 divided by) the sine, cosine and tangent. So.
There are three atoms in one molecule of carbon dioxide (#CO_2#), one carbon atom and two oxygen atoms. The carbon atom and two oxygen atoms share electrons by covalent bonding in order to achieve an octet of electrons in their valence shells. The following is a structural formula of a molecule of carbon dioxide.