Please help fast!! Select all the correct answers. Which functions have a range of {Y RI00 = 21+3
o
f(1) = 12 + 73 – 9
Of(t) = -4x + 11
f(x) = -(x + 1)² - 4
Of(t) = Xx - 8

Good question!

Step-by-step explanation:

tan(2x) = sin(2x)/cos(2x) = 2sinxcosx/(cos^2x - sin^2x).

Dividing the num- and denominator by sinxcosx, we get

2/(cosx/sinx - sinx/cosx) = 2/(cotx - tanx)

cotA + cotB = cosA/sinA + cosB/sinB

We just add them like fractions, with a common denominator of sinAsinB

(cosAsinB + sinAcosB)/sinAsinB

Note that sinAcosB + sinBcosA = sin(A+B)

Therefore we have

sin(A+B)/sinAsinB

Step-by-step explanation:

answer: i guess 5 units?

step-by-step explanation: