Math, asked by gargirai021, 1 year ago

If cos 3x = sin 2x then,x is - a)15° b)30° c)22.5° d)18°

Answers

Answered by adee1729
1
cos3x=sin2x,

cos3x=cos(90°-2x),

3x=90°-2x,

3x+2x=90°,

then

5x=90°,

x=90°/5=18°✓✓✓✓✓
Similar questions