3 years ago

If f(3) = 6, what function would be correct?

Mathematics

1 answer:

Soloha48 [4]3 years ago

8 0

Answer:

Step-by-step explanation:

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Definition: The statement formed when an equal sign is placed between two expressions is called an

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Answer:

equation

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3 years ago

Consider the parametric equations x = 4cos(t) – 3 and y = 5sin(t) + 2. What is the rectangular form?

uranmaximum [27]

Answer: C on edge

Step-by-step explanation:

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3 years ago

Suppose that 16 inches of wire cost 80 cents.

Karolina [17]

Answer:

11 inches

Step-by-step explanation:

you can cross multiply

inches cents

16 80

x 55

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3 years ago

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. Evaluate tan(α + β) = sin(????+????) / cos(????+????) to show tan(???? + ????) = tan(????)+tan(????????) / 1−tan(????) tan(???

grandymaker [24]

Answer with Step-by-step explanation:

We are given that

$tan(\alpha+\beta)$

$\frac{sin(\alpha+\beta}{cos(\alpha+\beta)}$

By using formula $tan x=\frac{sin x}{cos x}$

$\frac{sin\alpha cos\beta+sin\beta cos\alpha}{cos\alpha cos\beta-sin\alpha sin\beta}$

By using property: $sin(x+y)=sin x cosy+cos x sin y$

$cos(x+y)=cos x cosy-sin x siny$

Divide numerator and denominator by $cos\alpha cos\beta$

Then, we get

$\frac{\frac{sin\alpha}{cos\alpha}+\frac{sin\beta}{cos\beta}}{1-\frac{sin\alpha sin\beta}{cos\alpha cos\beta}}$

$tan(\alpha+\beta)=\frac{tan\alpha+tan\beta}{1-tan\alpha tan\beta}$

Hence, proved

Substitute $\alpha=\beta$

Then we get

$tan 2\alpha=\frac{tan\alpha+tan\alpha}{1-tan^2\alpha}$

$tan(2\alpha)=\frac{2tan\alpha}{1-tan^2\alpha}$

Hence, proved.

3 0

3 years ago

2y +6=3y+8<br> Verify it and explain step by step?

Over [174]

-6

2y = 3y + 2

-3y

-y = 2 so y = -2

4 0

4 years ago