Найдите производную функции
y=–3,6x²×cosx

Объяснение:

Для того, чтобы найти решение системы:

3x + 8y = 13;

5x - 16y = 7,

нам удобнее всего будет применить метод сложения. Рассмотрев оба уравнения мы видим, что перед переменной y в обеих уравнениях мы можем сделать взаимно противоположными коэффициенты.

Умножаем на 2 первое уравнение системы:

6x + 16y = 26;

5x - 16y = 7.

Сложим два уравнения системы:

6x + 5x = 26 + 7;

8y = 13 - 3x;

Решим первое уравнение:

6x + 5x = 33;

11x = 33;

x = 33 : 11;

x = 3.

Система уравнений:

x = 3;

y = (13 - 3 * 3)/8 = (13 - 9)/8 = 4/8 = 1/2.

Объяснение:

All my friends are toxic, all ambitionless

So rude and always negative

I need new friends, but it's not that quick and easy

Oh, I'm drowning, let me breathe

I'm better off all by myself

Though I'm feeling kinda empty without somebody else

Oh, I hear you crying out for help

But you never showed for me when I was ringing your cell phone

Oh, you don't know how it feels to be alone

Baby, oh, I'll make you know, I'll make you know, oh

(Oh, I'm drowning, let me breathe)

(I'm drowning, let me breathe)

(Oh, I'm drowning, let me breathe)

(I'm drowning, let me breathe)

But life is immaculate, backing it up a bit

Countin' my hours and knocking on wood

Avoiding my opposites, chewing on chocolate

Had a bit limited time, but I should

Be good for a minute, don't want to admit it

I'm running on seconds, I'm rigid, I'm screwed

Don't know what to do, I'm thinking of you

I'm drinking up bottles and bottles of booze

I'm better off all by myself

Though I'm feeling kinda empty without somebody else

Oh, I hear you crying out for help

But you never showed for me when I was ringing your cell phone

Oh, you don't know how it feels to be alone

Baby, oh, I'll make you know, I'll make you know, oh

I fell into your river

That's where you told me lies

You said that I'd feel better

But this is where good guys die

You took my pride away

But you cannot take my light

I'll find another way out

But now you're taking my life

Don't you see how I—

I'm better off all by myself

Though I'm feeling kinda empty without somebody else

Oh, I hear you crying out for help

But you never showed for me when I was ringing your cell phone

Oh, you don't know how it feels to be alone

Baby, oh, I'll make you know, I'll make you know, oh

I'm better off all by myself

Though I'm feeling kinda empty without somebody else

Oh, I hear you crying out for help

But you never showed for me when I was ringing your cell phone

Oh, you don't know how it feels to be alone

Baby, oh, I'll make you know, I'll make you know, oh

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