Which values for 0 have the same references angles?

a) pi/6, pi/3, 5pi/6
b) pi/3, 5pi/6, 4pi/3
c) pi/2, 5pi/4, 7pi/4
d) pi/4, 3pi/4, 7pi/4

the answer is d

Step-by-step explanation:

just took the quiz

5/12, or 5: 12

step-by-step explanation:

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb