Precalculus Solutions | Expert Assistance for Problems & Examples

Simplify expression $\frac{2 \cos (x) + 1}{4 \cos (\frac{x}{2} + \frac{π}{6})}$

yert21trey123z7 2022-04-27

We have $9 + 40 \sin^{2} x = - 42 \sin x \cos x$

kulisamilhh 2022-04-27

Verify this identity
$\frac{\tan x}{1 + \tan x} - \frac{\cot x}{1 + \tan x} = 1 - \cot x$

misangela4gi 2022-04-27

If $α + β = \frac{π}{4}$ prove that $(1 + \tan α) (1 + \tan β) = 2$

Dashawn Clark 2022-04-27

Solution of $\cos (2 x) - A \sin (2 x) = 0$ ?
I was not able to solve for x? Do you know how to proceed?

Wissety52 2022-04-27

Simplifying $\frac{y}{y^{2} + b^{2}}$ where $y = b \cot θ$

tefoldaavv 2022-04-27

Simplifying ${\tan 100}^{\circ} + 4 {\sin 100}^{\circ}$

Yaritza Robinson 2022-04-27

Simplify $\frac{a e^{- \frac{a}{x}} + b e^{- \frac{b}{x}}}{e^{- \frac{a}{x}} + e^{- \frac{b}{x}}}$

nrgiizr0ib6 2022-04-27

Simplify $\tan (2 \arcsin (\frac{1}{3}))$
$\tan (2 \arcsin (\frac{1}{3}))$
$= \tan (2 \sin^{- 1} (\frac{1}{3}))$
$= \tan^{- 1} (2 \sin (\frac{1}{3}))$

Travis Caldwell 2022-04-27

Simplify the expression $\sin 4 x + \sin 8 x + \dots + \sin 4 n x$

chingli20013a1 2022-04-27

Simplify $\frac{1 - \sin (x) + \cos (x)}{1 + \sin (x) + \cos (x)}$

tobeint39r 2022-04-27

Simplify $\arccos {\sqrt{\frac{2}{3}}} - \arccos {\frac{\sqrt{6} + 1}{2 \sqrt{3}}}$

Dashawn Robbins 2022-04-27

Simplify and evaluate without using a calculator:
$\frac{\sin π}{12} + \frac{\cos π}{12}$

bacasauvfl 2022-04-26

So, I have this equation:
$\sin x = 4 {\sin 10}^{\circ} {\sin 40}^{\circ} \sin (70^{\circ} - x)$

Ezequiel Olson 2022-04-26

Simplifying $\frac{{\sin 40}^{\circ} - \sqrt{3} {\cos 40}^{\circ}}{{\sin 10}^{\circ} {\cos 10}^{\circ}}$

Ari Sheppard 2022-04-26

Simplifying $\frac{6 \tan x}{1 - \tan^{2} x}$ to $3 \tan 2 x$

dooporpplauttssg 2022-04-26

Simplifying, I have
$\frac{1}{\sin x \cos x} = 3$

Kymani Shepherd 2022-04-26

Simplify: $\frac{\sin (3 x - y) - \sin (3 y - x)}{\cos (2 x) + \cos (2 y)}$
I used the formula:
$\sin (α) - \sin (β) = 2 \cdot \cos \dots$
and got to:
$\frac{\sin (2 x - 2 y)}{\cos (x - y)}$

hadaasyj 2022-04-26

Simplifying
$1 - x + x^{2} - x^{3} + \dots + x^{98} - x^{99}$ to an equivalent expression.

Davin Sheppard 2022-04-26

Simplify:
$\frac{\sin (x) \cos (x)}{1 - \sin^{2} (x)}$

Precalculus problems and solutions are hard to find online even though this topic is quite popular among college students majoring in Engineering. Keeping this fact in mind, we decided to provide you with a list of questions and answers that will help you with various precalculus problems. Regardless if it is related to equations or any other problem, these precalculus problems and composite functions examples and solutions below will help you see the logic and compare solutions as you check your original task.

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