What is the general solution for 2sin(3x+(3pi)/2)=1 ?

The general solution for 2sin(3x+(3pi)/2)=1 is x=(2pin)/3-(4pi)/9 ,x=(2pin)/3-(2pi)/9

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2sin(3x+(3pi)/2)=1

Solution

2 sin (3 x + \frac{3 π}{2}) = 1

Solution

x = \frac{2 πn}{3} - \frac{4 π}{9}, x = \frac{2 πn}{3} - \frac{2 π}{9}

Degrees

x = - 8 0^{\circ} + 12 0^{\circ} n, x = - 4 0^{\circ} + 12 0^{\circ} n

Solution steps

2 sin (3 x + \frac{3 π}{2}) = 1

Divide both sides by

2

2 sin (3 x + \frac{3 π}{2}) = 1

Divide both sides by

2

\frac{2 sin ( 3 x + \frac{3 π}{2} )}{2} = \frac{1}{2}

Simplify

sin (3 x + \frac{3 π}{2}) = \frac{1}{2}

sin (3 x + \frac{3 π}{2}) = \frac{1}{2}

General solutions for

sin (3 x + \frac{3 π}{2}) = \frac{1}{2}

sin (x)

periodicity table with

2 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} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

3 x + \frac{3 π}{2} = \frac{π}{6} + 2 πn, 3 x + \frac{3 π}{2} = \frac{5 π}{6} + 2 πn

3 x + \frac{3 π}{2} = \frac{π}{6} + 2 πn, 3 x + \frac{3 π}{2} = \frac{5 π}{6} + 2 πn

Solve

3 x + \frac{3 π}{2} = \frac{π}{6} + 2 πn : x = \frac{2 πn}{3} - \frac{4 π}{9}

3 x + \frac{3 π}{2} = \frac{π}{6} + 2 πn

Move

\frac{3 π}{2}

to the right side

3 x + \frac{3 π}{2} = \frac{π}{6} + 2 πn

Subtract

\frac{3 π}{2}

from both sides

3 x + \frac{3 π}{2} - \frac{3 π}{2} = \frac{π}{6} + 2 πn - \frac{3 π}{2}

Simplify

3 x + \frac{3 π}{2} - \frac{3 π}{2} = \frac{π}{6} + 2 πn - \frac{3 π}{2}

Simplify

3 x + \frac{3 π}{2} - \frac{3 π}{2} : 3 x

3 x + \frac{3 π}{2} - \frac{3 π}{2}

Add similar elements:

\frac{3 π}{2} - \frac{3 π}{2} = 0

= 3 x

Simplify

\frac{π}{6} + 2 πn - \frac{3 π}{2} : 2 πn - \frac{4 π}{3}

\frac{π}{6} + 2 πn - \frac{3 π}{2}

Group like terms

= 2 πn + \frac{π}{6} - \frac{3 π}{2}

Least Common Multiplier of

6, 2 : 6

6, 2

Least Common Multiplier (LCM)

Prime factorization of

6 : 2 \cdot 3

6

6

divides by

26 = 3 \cdot 2

= 2 \cdot 3

2, 3

are all prime numbers, therefore no further factorization is possible

= 2 \cdot 3

Prime factorization of

2 : 2

2

2

is a prime number, therefore no factorization is possible

= 2

Multiply each factor the greatest number of times it occurs in either

6

2

= 2 \cdot 3

Multiply the numbers:

2 \cdot 3 = 6

= 6

Adjust Fractions based on the LCM

Multiply each numerator by the same amount needed to multiply its

corresponding denominator to turn it into the LCM

6

For

\frac{3 π}{2} :

multiply the denominator and numerator by

3

\frac{3 π}{2} = \frac{3 π 3}{2 \cdot 3} = \frac{9 π}{6}

= \frac{π}{6} - \frac{9 π}{6}

Since the denominators are equal, combine the fractions:

\frac{a}{c} \pm \frac{b}{c} = \frac{a \pm b}{c}

= \frac{π - 9 π}{6}

Add similar elements:

π - 9 π = - 8 π

= \frac{- 8 π}{6}

Apply the fraction rule:

\frac{- a}{b} = - \frac{a}{b}

= - \frac{8 π}{6}

Cancel the common factor:

2

= 2 πn - \frac{4 π}{3}

3 x = 2 πn - \frac{4 π}{3}

3 x = 2 πn - \frac{4 π}{3}

3 x = 2 πn - \frac{4 π}{3}

Divide both sides by

3

3 x = 2 πn - \frac{4 π}{3}

Divide both sides by

3

\frac{3 x}{3} = \frac{2 πn}{3} - \frac{\frac{4 π}{3}}{3}

Simplify

\frac{3 x}{3} = \frac{2 πn}{3} - \frac{\frac{4 π}{3}}{3}

Simplify

\frac{3 x}{3} : x

\frac{3 x}{3}

Divide the numbers:

\frac{3}{3} = 1

= x

Simplify

\frac{2 πn}{3} - \frac{\frac{4 π}{3}}{3} : \frac{2 πn}{3} - \frac{4 π}{9}

\frac{2 πn}{3} - \frac{\frac{4 π}{3}}{3}

\frac{\frac{4 π}{3}}{3} = \frac{4 π}{9}

\frac{\frac{4 π}{3}}{3}

Apply the fraction rule:

\frac{\frac{b}{c}}{a} = \frac{b}{c \cdot a}

= \frac{4 π}{3 \cdot 3}

Multiply the numbers:

3 \cdot 3 = 9

= \frac{4 π}{9}

= \frac{2 πn}{3} - \frac{4 π}{9}

x = \frac{2 πn}{3} - \frac{4 π}{9}

x = \frac{2 πn}{3} - \frac{4 π}{9}

x = \frac{2 πn}{3} - \frac{4 π}{9}

Solve

3 x + \frac{3 π}{2} = \frac{5 π}{6} + 2 πn : x = \frac{2 πn}{3} - \frac{2 π}{9}

3 x + \frac{3 π}{2} = \frac{5 π}{6} + 2 πn

Move

\frac{3 π}{2}

to the right side

3 x + \frac{3 π}{2} = \frac{5 π}{6} + 2 πn

Subtract

\frac{3 π}{2}

from both sides

3 x + \frac{3 π}{2} - \frac{3 π}{2} = \frac{5 π}{6} + 2 πn - \frac{3 π}{2}

Simplify

3 x + \frac{3 π}{2} - \frac{3 π}{2} = \frac{5 π}{6} + 2 πn - \frac{3 π}{2}

Simplify

3 x + \frac{3 π}{2} - \frac{3 π}{2} : 3 x

3 x + \frac{3 π}{2} - \frac{3 π}{2}

Add similar elements:

\frac{3 π}{2} - \frac{3 π}{2} = 0

= 3 x

Simplify

\frac{5 π}{6} + 2 πn - \frac{3 π}{2} : 2 πn - \frac{2 π}{3}

\frac{5 π}{6} + 2 πn - \frac{3 π}{2}

Group like terms

= 2 πn + \frac{5 π}{6} - \frac{3 π}{2}

Least Common Multiplier of

6, 2 : 6

6, 2

Least Common Multiplier (LCM)

Prime factorization of

6 : 2 \cdot 3

6

6

divides by

26 = 3 \cdot 2

= 2 \cdot 3

2, 3

are all prime numbers, therefore no further factorization is possible

= 2 \cdot 3

Prime factorization of

2 : 2

2

2

is a prime number, therefore no factorization is possible

= 2

Multiply each factor the greatest number of times it occurs in either

6

2

= 2 \cdot 3

Multiply the numbers:

2 \cdot 3 = 6

= 6

Adjust Fractions based on the LCM

Multiply each numerator by the same amount needed to multiply its

corresponding denominator to turn it into the LCM

6

For

\frac{3 π}{2} :

multiply the denominator and numerator by

3

\frac{3 π}{2} = \frac{3 π 3}{2 \cdot 3} = \frac{9 π}{6}

= \frac{5 π}{6} - \frac{9 π}{6}

Since the denominators are equal, combine the fractions:

\frac{a}{c} \pm \frac{b}{c} = \frac{a \pm b}{c}

= \frac{5 π - 9 π}{6}

Add similar elements:

5 π - 9 π = - 4 π

= \frac{- 4 π}{6}

Apply the fraction rule:

\frac{- a}{b} = - \frac{a}{b}

= - \frac{4 π}{6}

Cancel the common factor:

2

= 2 πn - \frac{2 π}{3}

3 x = 2 πn - \frac{2 π}{3}

3 x = 2 πn - \frac{2 π}{3}

3 x = 2 πn - \frac{2 π}{3}

Divide both sides by

3

3 x = 2 πn - \frac{2 π}{3}

Divide both sides by

3

\frac{3 x}{3} = \frac{2 πn}{3} - \frac{\frac{2 π}{3}}{3}

Simplify

\frac{3 x}{3} = \frac{2 πn}{3} - \frac{\frac{2 π}{3}}{3}

Simplify

\frac{3 x}{3} : x

\frac{3 x}{3}

Divide the numbers:

\frac{3}{3} = 1

= x

Simplify

\frac{2 πn}{3} - \frac{\frac{2 π}{3}}{3} : \frac{2 πn}{3} - \frac{2 π}{9}

\frac{2 πn}{3} - \frac{\frac{2 π}{3}}{3}

\frac{\frac{2 π}{3}}{3} = \frac{2 π}{9}

\frac{\frac{2 π}{3}}{3}

Apply the fraction rule:

\frac{\frac{b}{c}}{a} = \frac{b}{c \cdot a}

= \frac{2 π}{3 \cdot 3}

Multiply the numbers:

3 \cdot 3 = 9

= \frac{2 π}{9}

= \frac{2 πn}{3} - \frac{2 π}{9}

x = \frac{2 πn}{3} - \frac{2 π}{9}

x = \frac{2 πn}{3} - \frac{2 π}{9}

x = \frac{2 πn}{3} - \frac{2 π}{9}

x = \frac{2 πn}{3} - \frac{4 π}{9}, x = \frac{2 πn}{3} - \frac{2 π}{9}

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Frequently Asked Questions (FAQ)

What is the general solution for 2sin(3x+(3pi)/2)=1 ?
The general solution for 2sin(3x+(3pi)/2)=1 is x=(2pin)/3-(4pi)/9 ,x=(2pin)/3-(2pi)/9