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ResourceSpotlight
Students will be introduced to nonlinear systems of equations. It begins by allowing students to move figures around the screen to see ways certain types of graphs (linear/conic and conic/conic) can intersect each other and how many possible intersection points are possible. The activity concludes by having students look at the equations in a nonlinear system, stating how many solutions are possible, and then solving the system by graphing.
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Texas Instruments, Inc.
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ResourceSpotlight
Students will be introduced to nonlinear systems of equations. It begins by allowing students to move figures around the screen to see ways certain types of graphs (linear/conic and conic/conic) can intersect each other and how many possible intersection points are possible. The activity concludes by having students look at the equations in a nonlinear system, stating how many solutions are possible, and then solving the system by graphing.
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Texas Instruments, Inc.
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A helpful scientific calculator that runs in your web browser window.
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Holt Online Learning
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This trigonometry laws and identities help sheet contains the law of cosines, law of sines, and law of tangents. It also contains the following identities: tangent identities, reciprocal identities, Pythagorean identities, periodic identities, even/odd identities, double angle identities, half angle identities, product to sum identities, sum to product identities, sum/difference identities, and cofunction identities.
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eCalc.com
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Almost all of the Trigonometric Identities, including Reciprocal identities, Pythagorean identities, Quotient identities, Co-Function identities, Even-Odd identities, Sum-Difference formulas, Double- and Half-angle formulas, and Sum-to-Product and Product-to-Sum formulas.
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Table of Trigonometric Identities
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This youtube video shows an easy way to remember the values of the unit circle that can be helpful for trigonometry students.
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Unit Circle Tricks
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How to solve trigonometric equations.
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SOS Math
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The perfect study site for high school, college students and adult learners. Get help to do your homework, refresh your memory, prepare for a test, ....
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SOS math
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Step-by-step solutions to odd-numbered problems from dozens of precalculus textbooks.
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Hotmath
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