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SVEN [57.7K]
3 years ago
8

Cos5xcosx-sin5xsinx=??????????????????

Mathematics
1 answer:
SVEN [57.7K]3 years ago
7 0

Answer:

cos6x.

Step-by-step explanation:

We use the identity

cosAcosB - sinAsinB = cos(A+B)

so cos5xcosx - sin5xsinx = cos(5x + x)

= cos6x.

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Bisects means divide in two equal parts.

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5 0
3 years ago
Which of the following inequalities is equivalent to 3-(w+2)>4+2w
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4 0
3 years ago
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1/2x + 6= 3x - 4<br> Solve the system of equations
shepuryov [24]
1.Combine multiplied terms into a single fraction

2. Multiply by 1

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6.Simplify

7.Multiply all terms by the same value to eliminate fraction denominators

8.Simplify

9.Divide both sides of the equation by the same term

10.Simplify

Solution:x=4
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