Question

Sin ² x + cos2 30 = 5/4​

Answer 1

Step-by-step explanation:

Sin ² x + cos2 30 = 5/4

sin2 x + (√3/2)2 = 5/4

sin2x = 5/4-3/4

sin2 x = 2/4

sin x = √2/4

sinx = 1 /2 = sin 30