Question

if sin25° = cos (x+ 50°) find x

Answer 1

15

Step-by-step explanation:

sin25°=cos(x+50)

=>sin25°=sin{90-(x+50)}

=>sin25°=sin(90-x-50)

=>sin25°=sin(40-x)

=>25=40-x

=>x=40-25

=>x=15

Answer 2

Step-by-step explanation:

sin25° = cos (x+50°)

sin 25° = cos (90 - x - 50)

sin (25°) = sin ( 40 - x )

25 = 40 - x

25 - 40 = - x

- 15 = - x

x = 15°