Pre-Calculus 40S Winter 2013 Section DB. Thursday, May 2, 2013. Cos x cannot be equal to zero. Sin x cannot be equal to zero.

Friday, September 26, 2014. Friday, February 7, 2014. Saturday, December 21, 2013. Merry Christmas and a Happy New Year to everyone. Wednesday, December 18, 2013. Keep up the good work.

Pre-Calculus 40S Section C Fall 2014. Thursday, January 22, 2015. Radical Function is a function that includes a radical with a variable in the radicand. For this lesson it is important to remember the concepts that we learned during the transformations unit 2. In the graph above transformations were done only on the y values and the x values stay the same.

Pre-Calculus 40S Section C Winter 2015. Monday, June 8, 2015. Tuesday, May 12, 2015. Tuesday, April 28, 2015. An equation is called a trigonometric identity. Determine the non-permissible values, in degrees, for the equation.

Pre-Calculus 40S Section D Fall 2014. Tuesday, December 2, 2014. Um sum and difference identities by marc. Sum and Difference identities is used to show how to find sine, cosine, or tangent of the sum or difference of two given angles. You can use these 3 formulas to find out the sum identity of sin, cos, and tan of two given angles. These 3 are used to find the difference identity of sin, cos, and tan of two given angles. Tuesday, November 25, 2014.