I've tried doing it, but every time i don't get any of the options.
what is the simplified form of the expression
a.) sec x
b.) cos x + sin x
c.) cos x
d.) 2cos^3x

Landon wrote that 3−2.6=4. which statement about his answer is true?

Af jewelry box is in the shape of a rectangular prism with an area of 528 cube inches. the length of the box is 12 inches and the height is 5 1/2 inches. what is the width of the jewelry box

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?