In represents the cotangent of ZT?

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

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step-by-step explanation:

just for that im not answering

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

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