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2 years ago

ASAP 25 POINTS WILL MARK BRAINLIEST MULTIPLE CHOICE

Mathematics

1 answer:

Natasha_Volkova [10]2 years ago

4 0

Answer:

Yes, this is a translation which doesn't change the pre-image size

Step-by-step explanation:

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HELP! Find the value of sin 0 if tan 0 = 4; 180 < 0< 270

BabaBlast [244]

Hi there! Use the following identities below to help with your problem.

$\large \boxed{sin \theta = tan \theta cos \theta} \\ \large \boxed{tan^{2} \theta + 1 = {sec}^{2} \theta}$

What we know is our tangent value. We are going to use the tan²θ+1 = sec²θ to find the value of cosθ. Substitute tanθ = 4 in the second identity.

$\large{ {4}^{2} + 1 = {sec}^{2} \theta } \\ \large{16 + 1 = {sec}^{2} \theta } \\ \large{ {sec}^{2} \theta = 17}$

As we know, sec²θ = 1/cos²θ.

$\large \boxed{sec \theta = \frac{1}{cos \theta} } \\ \large \boxed{ {sec}^{2} \theta = \frac{1}{ {cos}^{2} \theta} }$

And thus,

$\large{ {cos}^{2} \theta = \frac{1}{17}} \\ \large{cos \theta = \frac{ \sqrt{1} }{ \sqrt{17} } } \\ \large{cos \theta = \frac{1}{ \sqrt{17} } \longrightarrow \frac{ \sqrt{17} }{17} }$

Since the given domain is 180° < θ < 360°. Thus, the cosθ < 0.

$\large{cos \theta = \cancel\frac{ \sqrt{17} }{17} \longrightarrow cos \theta = - \frac{ \sqrt{17} }{17}}$

Then use the Identity of sinθ = tanθcosθ to find the sinθ.

$\large{sin \theta = 4 \times ( - \frac{ \sqrt{17} }{17}) } \\ \large{sin \theta = - \frac{4 \sqrt{17} }{17} }$

Answer

sinθ = -4sqrt(17)/17 or A choice.

4 0

2 years ago

Is this right?yes or no

baherus [9]

Answer:

yes

Step-by-step explanation:

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What is the value of the square root of 25 + the square root of 16?

kozerog [31]

Answer:9

Step-by-step explanation: square root of 25 is 5 and of 16 the square root is 4 add both of them together and you get 9

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2 years ago

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Attachment Mathswatchhhh!!!!!!!!!

Alexus [3.1K]

Answer:

(a) draw the graph using these coordinates :

(0,-1) and (3,1)

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3 years ago

Given (x – 1)2 = 50, select the values of x.

nexus9112 [7]

Answer:

x = 26

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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