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sec2x=3cos2x+cos(90-2x), -90<x<90
solve the following equation in the given interval :
sec2x = 3cos2x + cos(90-2x) ; - 90 < x < 90
Solve the given equation.

4a^(2/3)-16=0
Solve the given equation and determine whether the equation is an identity, a conditional equation or an inconsistent equation.

5x-3=5+5x
Solve the given equation and determine whether the equation is an identity, a conditional equation or an inconsistent equation.

(x/2)-(3/4)=(10-15x)/(6)
Solve the given equation and determine whether the equation is an identity, a conditional equation or an inconsistent equation.

2(x+5)=4x-2(x-5)
Solve each quadratic in form equation.

3. (x-5)^2+2(x-5)-35=0

4. (x-2)^2-3(x-2)+2=0
Solve the given equations.

12a. |9x-4|=20

12b. |2x^2-x-1|=-5
Solve the given equations.

11a. x^(2/3)+6x^(1/3)=7

11b. (y+3)^2-8(y+3)+12=0
Solve the given equation.

4a^(2/3)-16=0
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