SOLVE FOR X sin(8x−18)=cos(5x+4)
Mathematics · High School · Tue Nov 03 2020
llm
Answered on
we have,
sin(8x−18)=cos(5x+4)
we know , sin(a) = cos(b)
when a + b = 90°
here, a = 8x-18, b = 5x+4
So, 8x - 18 + 5x + 4 = 90°
13x - 14 = 90
13x = 90 + 14
13x = 104
x = 104/13
x = 8
Hence, value of x is 8.