Unanswered Questions

Evaluate each expression for a = 2, b = 3 and Express values in rational form.

Evaluate each expression for a = 2, b = 3 and Express values in rational form.

Step 1: substitute a = 2 and b = 3 into the expression

\(\sqrt{\frac{9\left(3\right)^3\left(2\cdot 3\right)^2}{\left(2^2\cdot 3^3\right)^3}}\)

S

Pre-calculus and Functions   DCDSB Helper   117   Asked 3 years ago

Transforming polar equation to rectangular

Transforming polar equation to rectangular

Transform the polar equation r(1-cos θ )=1 into rectangular form.

Thanks

Pre-calculus and Functions   chementhusiat   160   Asked 6 years ago

Writing an equation for cosine with several hints given

Writing an equation for cosine with several hints given

I have to write the equation of the cosine wave whose amplitude is 1.5, has a period of 270°, a phase-shift of -60°, and is reflected about the x-axis.

How do I do that?

Pre-calculus and Functions   chementhusiat   168   Asked 6 years ago

Write an equation that represents a cosine wave

Write an equation that represents a cosine wave

Any general wave will do. Thanks in advance

Also, state the period, phase-shift, and amplitude

Pre-calculus and Functions   chementhusiat   178   Asked 6 years ago

Solve the quartic: x^4-3x^3+x^2-3x+0=0

Solve the quartic: x^4-3x^3+x^2-3x+0=0

\(x^4-3x^3+x^2-3x+0=0\)

*Note: Remember to always common factor if a constant doesn't exist - as in this case.

Solution:



Follow this log

Pre-calculus and Functions   bio_man   255   Asked 2 years ago

Simplify Help

Simplify Help

\(\left[4\sqrt{x}^2-1\right]\cdot 2\sqrt{x}\)

Distribute the 2 to the two terms inside the brackets

\(4\sqrt{x}^2\cdot 2\sqrt{x}-2\sqrt{x}\)

\(8x\sqrt{x}-2\sqrt{x}\)

\(2\sqrt{x}\left(4x-1\right)\)

Pre-calculus and Functions   bio_man   291   Asked 5 years ago

To find the limit of a function with two variables by epsilon delta method

To find the limit of a function with two variables by epsilon delta method

Plz help me find the Limit of f(x,y)= (x^2-y^2)/(x^2+y^2)  as (x, y)  tend to (0,0) by epsilon delta method with a detailed solution.

Pre-calculus and Functions   Copernicus711   345   Asked 5 years ago

Synthetically Divide: (2x^3+x^2-22x+20)/(2x-3)

Synthetically Divide: (2x^3+x^2-22x+20)/(2x-3)

Divide by synthetic division: \((2x^3+x^2-22x+20)\div (2x-3)\)


Begin by solving for \(x\) in the divisor:

\(2x-3=0\)

\(\displaystyle x=\frac{3}{2}\)

Now perform synthetic division:

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Pre-calculus and Functions   bio_man   391   Asked 2 years ago

Factor by grouping examples

Factor by grouping examples

#9:   \(x^2+y^2+2xy-4\)

Rearrange

\(x^2+2xy+y^2-4\)

Factor the first three terms as your would a quadratic trinomial by trial and error \(\left(x^2+2xy+y^2\right)-4\). It becomes:

\(\left(x+y\right)\left(x+y\right)-4\)

Write t

Pre-calculus and Functions   Durham_College   473   Asked 5 years ago