## Step 1 :

Pulling out lượt thích terms :1.1 Pull out like factors:tanx - txco=tx•(an - co)

Equation at the end of step 1 :

## Step 2 :

Theory - Roots of a sản phẩm :

2.1 A product of several terms equals zero.When a product of two or more terms equals zero, then at least one of the terms must be zero.We shall now solve each term = 0 separatelyIn other words, we are going khổng lồ solve as many equations as there are terms in the productAny solution of term = 0 solves hàng hóa = 0 as well.

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Solving a Single Variable Equation:2.2Solvetx=0 Setting any of the variables to zero solves the equation:t=0x=0

Solving a Single Variable Equation:

2.3Solvean-co=0 In this type of equations, having more than one variable (unknown), you have lớn specify for which variable you want the equation solved.We shall not handle this type of equations at this time.

x=0t=0

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