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NIKITA
Questions and answers by visitors named
NIKITA
Questions (2)
Phosphoric acid is triprotic acid (three ionizable hydrogens). The values of its stepwise ionization constants are Ka1= 7.5E-5,
6 answers
5,868 views
SPPECH ABOUT TRADITIONAL HEALERS SHOULD BE ALLOWED TO PRACTISE AND PRESCRIBE MEDICINE IN HOSPITALS AND CLINICS
15 answers
6,355 views
Answers (3)
(sinA/cosA)/ sinA = 1/cosA = secA
tanA secA + tanA + tanA secA – tanA / (secA-1)( secA+1) = 2 tanA secA / sec2A -1 = 2 tanA secA / tan2A = 2 secA/ tanA = 2 cosA/ sinA * cosA = 2 / sinA = 2 cosecA
I don't understand how to do the first one. I really don't know how to do reactions
