Labels:text | font | screenshot | white OCR: 1. If both G1 and c2 are positive, try the substitution v = 2 tan u. 2. If G1 is negative and C2 is positive, try the substitution v = c2 sin u. -9 3. If G1 is positive and C2 is negative , try the substitution v = - 92 sec u. 15
