simplify cot(90)-x

Solution

simplify

cot (9 0^{\circ}) - x

- x

Solution steps

cot (9 0^{\circ}) - x

Use the following trivial identity:

cot (9 0^{\circ}) = 0

cot (x)

periodicity table with

18 0^{\circ} n

cycle:

x 0 3 0^{\circ} 4 5^{\circ} 6 0^{\circ} 9 0^{\circ} 12 0^{\circ} 13 5^{\circ} 15 0^{\circ} cot (x) \mp \infty 31 \frac{3}{3} 0 - \frac{3}{3} - 1 - 3

= 0 - x

0 - x = - x

= - x

(5 x + 3 y)^{3}

(x + 2 y) (x + 2 y + 2) - 8

- 3 (y - 5)

\frac{( x ^{3} - 4 x )}{( - 4 x ^{2} + 12 x )}

2 r^{2} - 5 x^{1} + 6 \cdot 3 x^{4} - 5 x^{3} - 6 x^{2} + 4 x - 3