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3 years ago

What is the intersection of planes D E C and B E C?

Mathematics

1 answer:

Licemer1 [7]3 years ago

7 0

E would be the intersection point

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6tf & 10ft radius what the answer

guapka [62]

All you have to do is 3.14×6×10 Which is 188.4

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2 years ago

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Blababa [14]

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2 years ago

A fruit bowl has 5 apples 7 oranges and 4 bananas. What is the ratio of apples to bananas?

Korolek [52]

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Step-by-step explanation:

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2 years ago

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Verify that (cos²a) (2 + tan² a) = 2 - sin² a....<br>

Sveta_85 [38]

Trigonometric Formula's:

$\boxed{\sf \ \sf \sin^2 \theta + \cos^2 \theta = 1}$

$\boxed{ \sf tan\theta = \frac{sin\theta}{cos\theta} }$

Given to verify the following:

$\bf (cos^2a) (2 + tan^2 a) = 2 - sin^2 a$

$\texttt{\underline{rewrite the equation}:}$

$\rightarrow \sf (cos^2a) (2 + \dfrac{sin^2 a}{cos^2 a} )$

$\texttt{\underline{apply distributive method}:}$

$\rightarrow \sf 2 (cos^2a) + (\dfrac{sin^2 a}{cos^2 a} ) (cos^2a)$

$\texttt{\underline{simplify the following}:}$

$\rightarrow \sf 2cos^2 a + sin^2 a$

$\texttt{\underline{rewrite the equation}:}$

$\rightarrow \sf 2(1 - sin^2a ) + sin^2 a$

$\texttt{\underline{distribute inside the parenthesis}:}$

$\rightarrow \sf 2 - 2sin^2a + sin^2 a$

$\texttt{\underline{simplify the following}} :$

$\rightarrow \sf 2 - sin^2a$

Hence, verified the trigonometric identity.

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2 years ago

Read 2 more answers

How do I Express the inequality x < 7 using interval notation.

Sedaia [141]

Answer: $(-\infty, 7)$

You can write this as (-infinity, 7) if you aren't able to use the infinity symbol.

====================================================

Explanation:

Think of x < 7 as writing $-\infty < x < 7$

So x is between negative infinity and 7, excluding both endpoints.

To write $-\infty < x < 7$ in interval notation, we write $(-\infty, 7)$

The curved parenthesis tell us to exclude the endpoint.

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3 years ago