Cast Diagram Questions

So i spend time making sure they understand why it works before introducing.

Cast diagram questions. The line of best fit has been drawn. A worksheet with explanations and examples for introducing pupils to using the cast diagram as an aid to solving trigonometric equations. For example the c in quadrant 4 tells you that cos is positive there. This is called the cast diagram.

All you have to remember is that all the trig functions are positive in quadrant 1 and the diagram tells you what is positive. Mathematics stack exchange is a question and answer site for people studying math at any level and professionals in related fields. It only takes a minute to sign up. Scroll up to the.

Look at the scatter diagram below. It seems like teaching without the understanding however i find they get the right answer more often with it. Trig equations using cast diagram. The cast diagram helps us to remember the signs of the trigonometric functions in each of the quadrants.

In the first quadrant the values are all positive. Its equation is. The cast diagram is also called the quadrant rule or the astc diagram. The other two trig fractions are negative.

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Lets see if youve got it. It only takes a minute to sign up. Im a little bit torn when it comes to teaching trig equations using the cast diagram.