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Mariulka [41]
3 years ago
5

Prove that sin alpha × sin(90- alpha) - cos(90-alpha) × cos alpha​

Mathematics
1 answer:
satela [25.4K]3 years ago
8 0

Answer:

It is equal to 0.

Step-by-step explanation:

I can simplify it as follows:

sinα sin(90 - α) - cos(90 - α)(cosα)

Now  sin(90 -α) = cosα and cos(90 - α) = sinα)    ( for α < 90)

So the expression becomes:

sinαcosα - sinαcosα

= 0 .

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From the conversation it can be inferred that Paul's approach to getting on the horse is methodical (option c).

<h3>What is methodical behavior?</h3>

A methodical attitude or behavior refers to the preference of people to use an organized method and sequences to perform an activity correctly.

According to the above, it can be inferred that Paul behaves in a methodical manner because he prefers to relate to the horse slowly and in a controlled manner before proceeding to mount it.

Learn more about methodical in: brainly.com/question/14560322

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2 years ago
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Answer:

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2 years ago
How do you write a linear equation given the slope and a point that
Serga [27]

Answer:

point slope form

Step-by-step explanation:

hi! we can use point slope form:

y-y1=m(x-x1)

where m is the slope, x1 is the x-coordinate of the given point, and y1 is the y-coordinate of the given point.

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3 years ago
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An equilateral polygon has congruent sides, like a rhombus.

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