Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (x^2-1)/(x+2)=4x
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Equation 3*x+5+(x+5)=(1-x)+4
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Equation cos(x)=3/4
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Equation cos(x)=(1/2)
- Express {x} in terms of y where:
- -13*x+7*y=11
- -8*x-15*y=15
- 4*x+18*y=-14
- -15*x-17*y=13
- Derivative of:
- -1/2
- Limit of the function:
- -1/2
- Integral of d{x}:
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-1/2
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Identical expressions
- cos4*pi*x/ three =- one / two
- co sinus of e of 4 multiply by Pi multiply by x divide by 3 equally minus 1 divide by 2
- co sinus of e of 4 multiply by Pi multiply by x divide by three equally minus one divide by two
- cos4pix/3=-1/2
- cos4*pi*x divide by 3=-1 divide by 2
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Similar expressions
- (3)/(8y^3+1)-(1)/(2y+1)=(y+3)/(y^2-2y+1)
- cos4*pi*x/3=+1/2
- cos(x/2)=-(1/2)
cos4*pi*x/3=-1/2 equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
cos(4*pi)*x
----------- = -1/2
3
$$\frac{x \cos{\left(4 \pi \right)}}{3} = - \frac{1}{2}$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Divide both parts of the equation by 1/3
We get the answer: x = -3/2
cos(4*pi)*x/3 = -1/2
Expand brackets in the left part
cos4*pix/3 = -1/2
Divide both parts of the equation by 1/3
x = -1/2 / (1/3)
We get the answer: x = -3/2
Sum and product of roots
[src]
sum
-3/2
$$- \frac{3}{2}$$
=
-3/2
$$- \frac{3}{2}$$
product
-3/2
$$- \frac{3}{2}$$
=
-3/2
$$- \frac{3}{2}$$
-3/2