4 years ago

What do you do when there is a negative in front of the parenthesis

Mathematics

1 answer:

pychu [463]4 years ago

3 0

Answer:

distributive property

Step-by-step explanation:

-(5)

-1(5)

-1x5=-5

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Vikentia [17]

Use double angle identity
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We can relate '6x' to '3x' in the same way since 6 is 2*3.
$sin(6x) = 2 sin (3x) cos (3x) \\ \\ cos(6x) = 2cos^2 (3x) - 1$

Now sub into left side of identity. Simplify until it equals right side.
$\frac{2 sin(3x) cos(3x)}{1+(2cos^2 (3x) -1)} = \frac{2 sin(3x) cos(3x)}{2cos^2 (3x) } = \frac{sin(3x)}{cos(3x)} = tan (3x)$

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4 years ago

What does the variable c equal in this equation?

Romashka [77]

The answer is 49.

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3 years ago

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frosja888 [35]

Answer:

x=10.9

Step-by-step explanation:

tan 36⁰=x/15

cross multiply

15 tan36⁰=x

x= 15 x 0.7265

x= 10.9

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3 years ago

What is the measure of angle x?

d1i1m1o1n [39]

The triangle BAC has two known measurements 30 and 90 so add those together and subtract by 180

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timurjin [86]

It’s always turning away from the sun

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