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3 years ago

What is the length of this line? Please help me! Thank you! ☺️

Mathematics

1 answer:

Semmy [17]3 years ago

7 0

Answer:

Step-by-step explanation:

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How do I verify this identity? I know you should write sin2a as sin(a+a).

Kisachek [45]

SOLUTION

Given the question in the image, the following are the solution steps to verify the identity

STEP 1: Write the given identity

$\sin 2\alpha=2\sin \alpha\cos \alpha$

STEP 2: Verify the identity

$\begin{gathered} \sin 2\alpha=2\sin \alpha\cos \alpha \\ \text{Consider the left hand side of the above trigonometry identity.} \\ \text{That is, }\sin 2\alpha\text{.} \\ \text{ Rewrite }\sin 2\alpha\text{ as }\sin (\alpha+a) \\ \text{ It is known that }\sin (a+b)=\sin (a)\cos b+\cos (a)\sin (b) \\ U\sin g\text{ this statement above, we have;} \\ \sin (\alpha+a)=\sin a\cos \alpha+\cos a\sin \alpha \\ \text{It is known that }xy+yx=xy+xy=2\times xy=2xy \\ U\sin g\text{ this statement above, we have;} \\ \sin a\cos \alpha+\cos a\sin \alpha=\sin a\cos \alpha+\sin \alpha\cos \alpha=2\times\sin \alpha\cos \alpha=2\sin \alpha\cos \alpha \\ \text{Hence, }\sin 2\alpha=2\sin \alpha\cos \alpha \end{gathered}$

The verification of the identity is as seen above.

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1 year ago

Which equation has no solution?

marissa [1.9K]

Answer: no soultions

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Write a polynomial function in standard form with zeros at 0, 1, and 2.

BARSIC [14]

Answer:

Step-by-step explanation:

f(x)=(x-0)(x-1)(x-2)

=x(x^2-3x+2)

or f(x)=x^3-3x^2+2x

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3 years ago

Tom made the box plots to compare the number of calories between his morning snacks and his afternoon snacks.

serg [7]

Answer:

cc ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Step-by-step explanation:

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3 years ago

What is 304,001 in expanded form

soldi70 [24.7K]

If you mean exponential it would be 3.04001*10^5

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3 years ago