An angle whose measure is 40 is in standard position. in which quadrant does the terminal side of the angle fall?

ANSWER

First quadrant

EXPLANATION

An angle in standard position starts measuring from the positive x-axis anticlockwise.

Since 40° is less than 90°, it's terminal side will fall within the first quadrant.

Hence the terminal side of a 40° is in the first quadrant.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: