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noname [10]
3 years ago
5

given a is equal to 60 degree and 30 degree prove that sin a + b is equal to sin a cos b + cos a sin b ​

Mathematics
1 answer:
Feliz [49]3 years ago
8 0

Answer:

A = 60 and B = 30  

Now, A + B = 60 + 30 = 90  

Also, A – B = 60 – 30 = 30  

sin (A + B) = sin 90 = 1  

sin A cos B + cos A sin B = sin 60 cos 30 + cos 60 sin 30

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SpyIntel [72]

Let's use our largest amount (quarter) to see how many can fit evenly into 1.74.

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---Subtract $1.50 from $1.74 = $0.24

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Now let's use our second largest amount (dime) to see how many can fit evenly into 0.24.

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3 years ago
Simplify the expression Write your answer as a power.
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7 0
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I WILL GIVE BRAINLIEST The toll on a bridge is $1.00 for cars and $2.50 for trucks. In one hour, a tollbooth operator collects a
telo118 [61]

Answer:

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3 years ago
2 1 point
mafiozo [28]

Answer:

  • The graph has a minimum.
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  • The vertex is located at (1, -4).
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Step-by-step explanation:

When the graph has a low point, it has a minimum. 'a' is positive in that case. The coordinates of that low point are (1, -4). That point is the vertex.

The graph crosses the y-axis at y = -3, so the y-intercept is (0, -3).

The graph crosses the x-axis at (-1, 0) and (3, 0). These points represent the solution to the equation y = 0.

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  • The solutions ... are -1 and 3.
  • The vertex is located at (1, -4).
  • In the equation, 'a' would be positive.
5 0
3 years ago
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