I need help solving these trig identities, PLEASE! posted (4 months, 4 weeks) ago !! 1. 2sinxsin3x=(1-cos2x)(1+cos2x) 2. sin2x-sinx/cos2x+cosx=1-cosx/sinx 3. 2cos4xsin2x=2sin3xcos3x…
math, college, trigonometry
Identities, engineer, trigonometry, math