This question was asked in Ex 3.4, 6

How to come (2cos2x-1)

 

Maɩŋ-Aŋgɘl'Haseeŋo Kɩ's image
Maɩŋ-Aŋgɘl'Haseeŋo Kɩ
May 25, 2018, 6:34 p.m.