Isolate the variable by dividing each side by factors that don't contain the variable.

\(\displaystyle{x}=\pi{n}\) for any integer n

\(\displaystyle{x}=\pi{n}\) for any integer n

Toni Scott

Answered 2021-12-22
Author has **3563** answers

asked 2021-12-09

Verify:

\(\displaystyle{{\cos}^{{{2}}}{\left({x}\right)}}-{{\sin}^{{{2}}}{\left({x}\right)}}={1}-{2}{{\sin}^{{{2}}}{\left({x}\right)}}\)

\(\displaystyle{{\cos}^{{{2}}}{\left({x}\right)}}-{{\sin}^{{{2}}}{\left({x}\right)}}={1}-{2}{{\sin}^{{{2}}}{\left({x}\right)}}\)

asked 2021-12-09

What does it mean "to prove" a trigonometric identity?

asked 2021-12-12

What are the quotient identities for a trigonometric functions?

asked 2021-12-11

Solve, please:\(\displaystyle{{\cos}^{{{2}}}{\left({2}{x}\right)}}+{{\sin}^{{{2}}}{\left({2}{x}\right)}}\)

asked 2021-09-05

Solve the system, please: \(\displaystyle{\left\lbrace\begin{array}{ccccc} {3}{x}&+&{y}&=&{9}\\{2}{x}&-&{y}&=&{1}\end{array}\right.}\)

asked 2021-12-21

Solve, please: \(\displaystyle{2}{x}={x}^{{{2}}}\)

asked 2021-09-10

Please, solve the system of equations:

\(\displaystyle{\left\lbrace\begin{array}{ccccc} {5}{x}&+&{y}&=&{14}\\{2}{x}&+&{y}&=&{5}\end{array}\right.}\)

\(\displaystyle{\left\lbrace\begin{array}{ccccc} {5}{x}&+&{y}&=&{14}\\{2}{x}&+&{y}&=&{5}\end{array}\right.}\)