Question

1. If sin(3x + 10) = cos(2x + 20), find x.​

Answer 1

2x +10 = 90-2x-20

2x+10= 70-2x

4x =60

X =15

Answer 2

Answer:

X=12

Step-by-step explanation:

sin(3x+10)=cos(2x+20)

=>sin(3x+10)=sin{90-(2x+20)}

=>3x+10=90-2x-20

=>3x+2x=90-10-20

=>5x=60

=>X=12

hope it can help you