Question

Find theta if sin(2theta-45)=cos(30-theta) ​

Answer 1

Step-by-step explanation:

• Sin (2theta - 45) = cos (30-theta)
• Sin (2theta - 45) = sin (90 - (30-theta))
• Sin (2theta - 45) = sin (60 + theta)
• 2theta - 45 = 60 + theta
• 2 theta - theta = 60 + 45
• Theta = 105