What is the general solution for 18sin(x)=18cos(x) ?

The general solution for 18sin(x)=18cos(x) is x= pi/4+pin

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18sin(x)=18cos(x)

18 sin (x) = 18 cos (x)

x = \frac{π}{4} + πn

Degrees

x = 4 5^{\circ} + 18 0^{\circ} n

Solution steps

18 sin (x) = 18 cos (x)

Rewrite using trig identities

18 sin (x) = 18 cos (x)

Divide both sides by

cos (x), cos (x) \neq = 0

\frac{18 sin ( x )}{cos ( x )} = \frac{18 cos ( x )}{cos ( x )}

Simplify

\frac{18 sin ( x )}{cos ( x )} = 18

Use the basic trigonometric identity:

\frac{sin ( x )}{cos ( x )} = tan (x)

18 tan (x) = 18

18 tan (x) = 18

Divide both sides by

18

18 tan (x) = 18

Divide both sides by

18

\frac{18 tan ( x )}{18} = \frac{18}{18}

Simplify

tan (x) = 1

tan (x) = 1

General solutions for

tan (x) = 1

tan (x)

periodicity table with

πn

cycle:

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} tan (x) 0 \frac{3}{3} 13 \pm \infty - 3 - 1 - \frac{3}{3}

x = \frac{π}{4} + πn

x = \frac{π}{4} + πn

What is the general solution for 18sin(x)=18cos(x) ?
The general solution for 18sin(x)=18cos(x) is x= pi/4+pin