Verified answer

n * pi / 2 + (n + 2) * pi / 3 + 2 * n * pi =>

3 * n * pi / 6 + 2 * (n + 2) * pi / 6 + 12 * n * pi / 6 =.

(3n * pi + 2n * pi + 4pi + 12n * pi) / 6 =>

(17n * pi + 4 * pi) / 6 =>

pi * (17n + 4) / 6

I take it algebra, which you would be able to no longer understand calculus.. nather do I.. so for you to use the quadratic formulation... opposite of b (sq. root) of b squared - 4ac divided through 2a minus 3x squared from the two aspects and make each little thing the choice (this is much less complicated that way) and you come again up with 3x squared + - 2x + -2 = 0 3 = a, 2 = b and c. so.......... -2 |2 squared - 4(3)(2) / 2(3) the equation provides you with 2 solutions. 2 squared is 4 minus -24 (upload 24.) it particularly is 28. -2 |28 / 2(3) (it particularly is six.) 28/6 is 4.sixty seven rounded to the 10th OR 4 2/3. sqaure root of four 2/3 is two.sixteen 02468 situations that through -2 and you come again up with your answer.. -4.324936.. considering which you around to the closest hundreth.. it would be -4.32

(17nπ + 2π) / 6

-or-

( (17nπ) / 6 ) + π / 3