For the acute angles in a right triangle, sin (4x)° = cos (3x + 13) °. What is the number of degrees in the measure of the smaller angle

3 answers

The two acute angles are complementary, so
4x + 3x+13 = 90
7x = 77
Now finish it off
Why 44 do you then substitute the x in the sin(4x)°
To sin( 4(11))?
The answer is 44 degrees