Question

cos(x +10⁰) =cos(x - 20⁰) Solve for x​

Answer 1

6272781910101010010101001010100101001

Answer 2

Step-by-step explanation:

Step-by-step explanation:

$\huge\bold{Simplifying}$

$cos(x + 10) = cos(x + -20)$

$\huge\bold{Reorder the terms:}$

$cos(10 + x) = cos(x + -20)$

$(10 * cos + x * cos) = cos(x + -20)$

$(10cos + cosx) = cos(x + -20)$

$\huge\bold{Reorder the terms:}$

$10cos + cosx = cos(-20 + x)$

$10cos + cosx = (-20 * cos + x * cos)$

$10cos + cosx = (-20cos + cosx)$

Add '-1cosx' to each side of the equation.

$10cos + cosx + -1cosx = -20cos + cosx + -1cosx$

Combine like terms: cosx + -1cosx = 0

$10cos + 0 = -20cos + cosx + -1cosx$

$10cos = -20cos + cosx + -1cosx$

Combine like terms: cosx + -1cosx = 0

$10cos = -20cos + 0$

$10cos = -20cos$

$\huge\bold{Question :-}$Solving

$10cos = -20cos$

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '20cos' to each side of the equation.

$10cos + 20cos = -20cos + 20cos$

Combine like terms: 10cos + 20cos = 30cos

$30cos = -20cos + 20cos$

Combine like terms: -20cos + 20cos = 0

$30cos = 0$

Divide each side by '30'.

$cos = 0.0$

$\huge\bold{Simplifying}$

$cos = 0.0$

The solution to this equation could not be determined.