Help math? midterm tomorrow

1) If cos of theta = 3/5 in quadrant 1, then sin of theta = ???
a. 5/3 b. 4/5 c. squareroot of 34/5 d. 4/3

2) Evaluate cos(135 degrees) + sin(45degrees) + tan(60degrees)
A) 0 B) 0.17486 C) squareroot of pie. D) squareroot of 3

3) what is the smallest postive co-terminal angle of 765 degrees?

A) 405 degrees B) -315 degrees C) 45 degrees D) 1125 degrees
Asked Jan 14, 2015

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