Trigonometry Answers

Find the exact value by using a half-angle identity.

sin 75 degrees

Find cos(A+C) given that cos A = 1/3 with A in quadrant I, and sin C = 1/4, with C in quadrant II.

sin theta + cosec theta}whole square + cos theta + sec theta }whole square = ???

solve for the Given Variables

T=D+pm for m

You are purchasing a CD player at a markdown price of $127.50. If the markdown price was 15% off the original price, how much was the CD player originally?

A rectangular floor has a perimeter of 54 feet. If the length is 3 more than the width, what are the dimensions of the floor?

The heights in inches of three basketball players are 3 consecutive integers. If the sum of twice the 1st, 3 times the 2nd, and the 3rd is 437, what are the three heights.

In last night’s basketball game, Sally scored 9 less than twice what Lucy scored. The sum of their scores is 27. How many points did Sally and Lucy make individually?

solve the following

(6)/(x^2-8x) - 3/x