Prove each identity
a) csex (1 - sec?x) = -tax
cOSX
b) cscx(1 - cos2x) = sinx
cscx-sx = cosx
d) (1 + tanx)(1 - cotx) = tanx - cotx
c)
sex-sinx
cotx
sư
1-cosx
1-cosx = 2csc
sinx
e) 2sec x = -six + =sing

If g(x) is an odd function, which function must be an even function?

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?