>>This is Your Math Gal, Julie Harland. Please visit my website at YourMathGal.com, where all my videos are organized by topic. We’re going to solve this multiple angle trig equation, and we’re going to be using a calculator, so make sure you have a scientific or graphing calculator with you. Find all values of x […]

# Tag: equation

## Evaluate Trig Functions with Calculator 2

>>Julie Harland: This is your Math Gal, Julie Harland. Please visit my website at www.yourmathgal.com where all of my videos are organized by topic. This is Part II of Evaluating Trig Functions with a Calculator. In Part I, we used a calculator to find the sine, cosine and tangent of angles either given in degrees […]

## Ex: Solve sec(x)=a Without a Calculator

[Voiceover]- In this lesson we’ll solve the equation secant theta equals two divided by square root of three and secant theta equals negative square root of two on the given interval, without a calculator. So, because we’ll be solving these equations without a calculator, we’ll cover how to solve them using a unit circle as […]

## Ex: Solve cot(x)=a Without a Calculator

We want to solve the equation cotangent theta equals square root of three and the equation cotangent theta equals a negative square root of three divided by a three on the interval from zero to two pi radians. We want to solve these equations without a calculator which means we’ll be using reference triangles in […]

## Ex: Evaluate Common Logarithms on the Calculator

– WE WANT TO EVALUATE EACH LOGARITHM ON A CALCULATOR. THEN WRITE A EXPONENTIAL EQUATION TO SHOW THE MEANING OF THE VALUE. NOTICE IN BOTH OF THESE LOGARITHMS THE BASE IS NOT GIVEN THEREFORE WE KNOW IT’S A COMMON LOGARITHM OR LOG BASE 10. MOST CALCULATORS ONLY CONTAIN TWO LOG BUTTONS, LOG FOR COMMON LOG […]

## Ex: Evaluate Natural Logarithms on the Calculator

– WE WANT TO EVALUATE THE GIVEN LOGARITHMS, AND THEN WRITE AN EXPONENTIAL EQUATION TO SHOW THE MEANING OF THE VALUE. NOTICE BOTH OF THESE ARE NATURAL LOGARITHMS, WHICH MEANS BOTH OF THESE ARE LOG BASE E. AND JUST TO REMIND US OF THIS, LET’S GO AHEAD AND PUT THE LITTLE E HERE AND HERE. […]

## Ex: Solve a Trigonometric Equation Using a Graphing Calculator

We want to solve a trig equation graphically using a graphic calculator. We want to give the first two positive radian solutions rounded to four decimal places. So to solve this graphically, we’ll enter the left side of the equation, in y one, we’ll enter the right side of the equation, in y two. And […]

## Ex: Solve tan(x)=a on [0,2pi) with a Calculator (negative a)

We want to solve the equation tan x equals negative six on the interval from zero to two pi radians. The first thing we might notice here is we aren’t going to find tangent function values of negative six on the unit circle or using reference triangles, so we’ll have to use a calculator in […]

## Ex: Solve sin(x)=a Using a Calculator (positive a)

– WE WANT TO SOLVE THE GIVEN TRIG EQUATION ON THE INTERVAL FROM 0 TO 2PI WHERE IT’S CLOSED ON 0 AND OPEN ON 2PI. SO IT LOOKS LIKE A PRETTY STRAIGHT FORWARD EQUATION. LET’S GO AHEAD AND ADD 0.32 TO BOTH SIDES. WE’LL HAVE SINE X=0.32. SO WE WANT TO DETERMINE THE ANGLES ON […]