First principal method by cos√x
Answers
Answered by
5
Answer:
From here the derivation requires the knowledge of three identities, namelycos(a+b) = cos(a)cos(b) - sin(a)sin(b) and the sine andcosine limit identities. The rest of the derivation of cos(x) from first principles is done by substitution, factoring and simplifying.
Answered by
0
Answer:
Step-by-step explanapta nhi
tion:
Similar questions