asinus

Gruß an radix und gandalf!

Hallo Gast!

f(x) = 2 / cos(- mx)

f''(x) = ?

y = u / v

y' = (u'v - uv') / v²      Quotientenregel

u = 2

u' = 0

v = cos(-mx)

[f(g(x))]' = f'(g(x)) * g'(x)       Kettenregel

v' = -sin(-mx) * (-m)

y' = (u'v - uv') / v²

y' = (0 - 2 * (-sin(-mx) * (-m))) / cos²(-mx)

y' = 2m * (-sin(-mx)) / cos²(-mx)

Dieses Ergebnis kann mit Formeln der Trigonometrie

sicher noch simplifiziert werden.

Gruß asinus :- )

  !

Hello Guest!

Is the expression x^3*x^3*x^3 equivalent to x^3*3*3?

No!

x³ * x³ * x³ = x⁹

Potencies equal basis will be multiplied,
by adding their exponents
and the base maintains.

Greeting asinus :- )

  !

Hallo radix, diese Antwort kam von L.

Ich wollte nicht meinen Senf dazu geben! Sorry! !

6 / 100% = 4 / x

6x = 400%

x = 400% / 6

x = 66 2/3 %

Gruß L.

Small operator error. Sorry!

Hello Guest!

is (3x square + 6)square equal to (x + 2) if not whats the right answer

(3x² + 6)² = x + 2 ?

9x⁴ + 36x² + 36 - x - 2 = 0

9x⁴ + 36x² - x + 34 = 0

with Solver : The equation has 4 complex solutions.

(3x² + 6)² ≠ (x + 2)

Greeting asinus :- )

  !

Hello Guest!

The edge of a cube is a = 8 cm in length.

What is the surface area A in cm2 of the cube.

A = 6a² = 6 * (8cm)² = 384cm²

The surface area this cube is 384cm².

Greeting asinus :- )

  !

Hello Guest!

what is 4=9 subtract 50 times 100 divided by 9000

4 = 9 - 50 * 100 / 9000 = 8.4444...        That makes no sense.

4 = (9 - 50 * 100) / 9000 = 0.554555...  That makes no sense.

Greating asinus :- )

  !

Hello Guest!

Factor pairs for 16 36 42 24 and 99

16 ⇒ 2x8 4x4

36 ⇒ 2x18 3x12 4x9 6x6

42 ⇒ 2x21 3x14 6x7

24 ⇒ 2x12 3x8 4x6

99 ⇒ 3x33 11x9

Greetings asinus :- )

  !