Which of the following is an identity?
a. csc^2 x + cot^2 x = 1
b. (cscx + cotx)^2 = 1
c. sec^2 x sec^2 x + 1 = tan^2 x csc^2 x
d. sin^2 x - cos^2 x = 1

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8