sec 0 =
A. 1/sinθ
B. ±√(cos²θ + 1)
C. ±√(tan²θ + 1)

Express cos in terms of sin.
A. ±√(1 - sin²θ)
B. 1 + sin²θ
C. sin²θ - 1

tan 0 =
A. 1/cotθ
B. 1 - cot²θ
C. 1 + sec²θ

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn. if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.