# Substitution method

Solve goniometric equation:

sin

sin

^{4}θ - 1/cos^{2}θ=cos^{2}θ - 2**Result****Showing 0 comments:**

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Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation.

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation.

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