2 years ago

Composition of Functions math help

Mathematics

1 answer:

sergij07 [2.7K]2 years ago

4 0

Answer:

I believe it's 1.

Step-by-step explanation:

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The expression sin 57° is equal to

ValentinkaMS [17]

Answer:

$cos(33^{\circ})$

Step-by-step explanation:

Given

$sin(57^{\circ})$

Required

Determine an equivalent expression

In trigonometry:

$sin(\theta)= cos(90^{\circ} - \theta)$

In $sin(57^{\circ})$

$\theta=57^{\circ}$

Substitute $57^{\circ}$ for $\theta$

in $sin(\theta)= cos(90^{\circ} - \theta)$

$sin(57^{\circ})= cos(90^{\circ} - 57^{\circ})$

$sin(57^{\circ})= cos(33^{\circ})$

Hence, the equivalent expression is: $cos(33^{\circ})$

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2 years ago

Please help, this is important.

STatiana [176]

Answer: B, D

Step-by-step explanation:

You Can just count the blocks

B: has 24 and D has 24 which both of them are between 30 and 20

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In the diagram, point O is the center of the circle and AC¯¯¯¯¯ and BD¯¯¯¯¯ intersect at point E. If m∠AOB = 90° and

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